“Trust” does double duty in English: it’s the quiet noun sitting behind every solid relationship, and it’s the verb we use every time we choose to believe someone or lean on them. That range makes it useful, but it also means “trust” can feel vague when precision matters is this trust in someone’s honesty, their competence, or their intentions?
This guide gathers 55 synonyms for “trust,” covering both the noun (confidence, faith, reliance) and the verb (rely on, bank on, confide in), so you can choose the version that actually fits what you mean.
At a Glance
| Category | Top Synonyms | Best For | Register |
|---|---|---|---|
| Noun (belief) | confidence, faith, belief, reliance | relationships, character | neutral |
| Verb (to rely) | rely on, depend on, count on, believe in | actions, decisions | neutral |
| Formal / legal | credence, fealty, troth, good faith | contracts, formal writing | formal |
| Informal | bank on, bet on, buy into, go by | casual speech | informal |
What Does “Trust” Mean?
“Trust” carries two closely linked but grammatically distinct senses.
Sense 1 — Noun: A firm belief in the reliability, honesty, or ability of someone or something, as in “she has trust in her team” or “trust between the two countries broke down.”
Sense 2 — Verb: To believe in and rely on someone or something without needing proof, as in “I trust him to finish the job” or “you can trust this data.”
There’s also a narrower legal/financial sense — a “trust” as a fund or arrangement managed on someone’s behalf — which uses different vocabulary entirely (fund, estate, endowment) and isn’t the focus of this list.
Word Family
Trust (noun/verb) — belief in reliability; to rely on without proof.
Trusting (adjective) — inclined to trust readily.
Trustingly (adverb) — in a trusting manner.
Trustworthy (adjective) — deserving of trust.
Trustworthiness (noun) — the quality of being trustworthy.
Trustful (adjective) — full of trust; not suspicious.
Distrust / Mistrust (noun/verb, antonyms) — lack of trust; to doubt.
Untrustworthy (adjective, antonym) — not deserving of trust.
Etymology
“Trust” entered English around the 13th century from the Old Norse traust, meaning “confidence, protection, support.” That root ties back to the Proto-Germanic *traustam, connected to the idea of firmness or solidity — the same deep root that gives us “true” and “truth” in Old English (treowe). The link makes sense: to trust someone is, at its core, to treat them as true.
Connotation
“Trust” is almost universally positive, suggesting safety, openness, and reliability. It sits opposite words like suspicion, doubt, and betrayal. Because trust is often described as something “built” or “broken,” it carries a slightly fragile connotation — valuable precisely because it can be lost.
Synonyms by Context
Synonyms for Trust by Context (Noun — Confidence & Belief)
Confidence, faith, belief, reliance, credence, conviction — these describe the internal state of trusting, as in “he spoke with quiet confidence in her judgment” or “their faith in the system never wavered.”
Synonyms for Trust by Context (Verb — To Rely On or Believe)
Rely on, depend on, count on, believe in, confide in, bank on — these describe the act of trusting, as in “you can depend on her to show up” or “I confide in very few people.”
Synonyms for Trust in Formal & Legal Writing
Credence, assurance, fealty, troth, good faith, repose faith in — these suit contracts, historical writing, or elevated prose, as in “the parties negotiated in good faith.”
Synonyms for Trust in Everyday, Informal Speech
Bank on, swear by, bet on, buy into, go by, set store by — these fit casual conversation, as in “I always swear by her advice” or “don’t buy into what he says.”
Main Synonym List
1. Confidence
Part of Speech: Noun
Meaning: A firm belief in the reliability or ability of someone or something.
Best Used For: Abilities, decisions, relationships.
Example: The board expressed full confidence in the new CEO.
Nuance: Slightly more about competence than emotional openness.
Synonym Strength: Strong, near-exact for trust in ability.
2. Faith
Part of Speech: Noun
Meaning: Complete trust or confidence, often without needing proof.
Best Used For: Relationships, beliefs, long-term commitments.
Example: She kept faith in him even when others doubted her.
Nuance: Carries an emotional or even spiritual undertone.
Synonym Strength: Strong, especially in personal contexts.
3. Belief
Part of Speech: Noun
Meaning: Acceptance that something is true or someone is reliable.
Best Used For: Ideas, claims, character.
Example: His belief in her honesty never faltered.
Nuance: More cognitive than emotional; about accepting truth.
Synonym Strength: Moderate; overlaps but is broader than trust.
4. Reliance
Part of Speech: Noun
Meaning: Dependence on someone or something for support or accuracy.
Best Used For: Systems, habits, ongoing support.
Example: The team’s reliance on outdated software caused delays.
Nuance: Focuses on dependence rather than emotional trust.
Synonym Strength: Moderate; practical rather than personal.
5. Credence
Part of Speech: Noun
Meaning: Acceptance of something as true or credible.
Best Used For: Claims, reports, theories.
Example: The new evidence lent credence to her story.
Nuance: Formal; applies to statements more than people.
Synonym Strength: Moderate; narrower than general trust.
6. Rely On
Part of Speech: Verb
Meaning: To depend on someone or something with confidence.
Best Used For: Support, help, consistent behavior.
Example: You can rely on her to tell you the truth.
Nuance: Practical and everyday; works in most registers.
Synonym Strength: Strong, one of the closest verb matches.
7. Depend On
Part of Speech: Verb
Meaning: To need or rely on for support, help, or supply.
Best Used For: Necessities, ongoing support, outcomes.
Example: The village depends on the river for its water.
Nuance: Can imply necessity, not just confidence.
Synonym Strength: Moderate to strong, context-dependent.
8. Count On
Part of Speech: Verb
Meaning: To rely on with confident expectation.
Best Used For: Promises, plans, personal reliability.
Example: You can always count on him to show up early.
Nuance: Slightly informal; suggests near-certainty.
Synonym Strength: Strong in everyday contexts.
9. Believe In
Part of Speech: Verb
Meaning: To have confidence in the truth, ability, or worth of someone.
Best Used For: Potential, character, ideas.
Example: Her coach believed in her long before the medals came.
Nuance: Emphasizes conviction about worth or potential.
Synonym Strength: Strong in the “confidence in a person” sense.
10. Confide In
Part of Speech: Verb
Meaning: To share private thoughts or information with someone trusted.
Best Used For: Secrets, personal matters, close relationships.
Example: She confided in her sister about the diagnosis.
Nuance: Narrower — implies trust specifically around disclosure.
Synonym Strength: Moderate; a specific application of trust.
11. Entrust
Part of Speech: Verb
Meaning: To assign responsibility for something valuable to someone.
Best Used For: Duties, possessions, responsibilities.
Example: They entrusted the project to their most experienced engineer.
Nuance: Implies an active transfer of responsibility, not just belief.
Synonym Strength: Strong in the “give responsibility” sense.
12. Bank On
Part of Speech: Verb
Meaning: To rely on something happening or being true.
Best Used For: Predictions, plans, expected outcomes.
Example: Don’t bank on the weather clearing up by noon.
Nuance: Informal; often used for outcomes rather than people.
Synonym Strength: Moderate; casual register.
13. Swear By
Part of Speech: Verb
Meaning: To have complete confidence in the effectiveness or truth of something.
Best Used For: Products, methods, remedies.
Example: My grandmother swears by this old recipe for colds.
Nuance: Informal and often used for personal endorsements.
Synonym Strength: Moderate; strong but casual.
14. Have Faith In
Part of Speech: Verb phrase
Meaning: To trust deeply, often without needing evidence.
Best Used For: People, outcomes, long-term hope.
Example: We have faith in the process, even when results are slow.
Nuance: Carries emotional or even spiritual weight.
Synonym Strength: Strong in emotionally significant contexts.
15. Assurance
Part of Speech: Noun
Meaning: A positive declaration meant to inspire confidence; confident certainty.
Best Used For: Promises, guarantees, reassurance.
Example: He gave her assurance that the deadline would be met.
Nuance: Often refers to a stated promise rather than felt trust.
Synonym Strength: Moderate; adjacent rather than identical.
16. Credibility
Part of Speech: Noun
Meaning: The quality of being trusted and believed in.
Best Used For: Reputation, sources, arguments.
Example: The scandal damaged the senator’s credibility.
Nuance: Describes a quality that earns trust, not the trust itself.
Synonym Strength: Moderate; closely related but not identical.
17. Conviction
Part of Speech: Noun
Meaning: A firm belief or certainty, often held strongly.
Best Used For: Beliefs, principles, personal certainty.
Example: She spoke with conviction about her plans for the company.
Nuance: More about personal certainty than trust in others.
Synonym Strength: Moderate; overlaps with trust in ideas.
18. Certainty
Part of Speech: Noun
Meaning: Complete confidence that something is true.
Best Used For: Facts, outcomes, predictions.
Example: There’s no certainty the merger will go through.
Nuance: About knowledge more than relational trust.
Synonym Strength: Weak-moderate; useful mainly for facts.
19. Lean On
Part of Speech: Verb
Meaning: To depend on someone for support, especially emotionally.
Best Used For: Emotional support, difficult times.
Example: It’s okay to lean on your friends during hard times.
Nuance: Emphasizes emotional reliance over general trust.
Synonym Strength: Moderate; specific to support contexts.
20. Dependence
Part of Speech: Noun
Meaning: The state of relying on someone or something.
Best Used For: Systems, relationships, needs.
Example: Their growing dependence on one supplier was a risk.
Nuance: Can carry a slightly negative or vulnerable connotation.
Synonym Strength: Weak-moderate; practical, not always trust-based.
| Word | Type | Best Used For | Strength |
|---|---|---|---|
| 21. Certitude | Noun | beliefs, convictions | Moderate |
| 22. Trustfulness | Noun | disposition, character | Moderate |
| 23. Troth | Noun (archaic) | pledges, vows | Moderate (literary) |
| 24. Fealty | Noun (archaic) | loyalty, allegiance | Moderate (formal) |
| 25. Security | Noun | emotional safety | Moderate |
| 26. Assuredness | Noun | confidence, manner | Weak-Moderate |
| 27. Dependency | Noun | systems, needs | Weak-Moderate |
| 28. Good Faith | Noun | negotiations, intentions | Moderate (formal) |
| 29. Sureness | Noun | confidence, manner | Weak-Moderate |
| 30. Weight | Noun | credence given to claims | Weak-Moderate |
| 31. Place Confidence In | Verb phrase | people, institutions | Moderate |
| 32. Put Stock In | Verb phrase | opinions, predictions | Moderate (informal) |
| 33. Repose Faith In | Verb phrase (formal) | leaders, institutions | Moderate |
| 34. Take On Faith | Verb phrase | claims without proof | Moderate |
| 35. Give Credence To | Verb phrase | claims, rumors, reports | Moderate |
| 36. Look To | Verb | guidance, leadership | Weak-Moderate |
| 37. Buy Into | Verb (informal) | ideas, plans | Weak-Moderate |
| 38. Subscribe To | Verb | views, theories | Weak-Moderate |
| 39. Reckon On | Verb (informal) | outcomes, plans | Weak-Moderate |
| 40. Go By | Verb (informal) | advice, rules, word | Weak-Moderate |
| 41. Set Store By | Verb phrase | opinions, values | Moderate |
| 42. Vest Confidence In | Verb phrase (formal) | leaders, authorities | Moderate |
| 43. Take At (Someone’s) Word | Verb phrase | statements, promises | Moderate |
| 44. Accept As True | Verb phrase | claims, information | Weak-Moderate |
| 45. Rest On | Verb | outcomes, judgments | Weak-Moderate |
| 46. Hinge On | Verb | outcomes, decisions | Weak-Moderate |
| 47. Turn To | Verb | people, advice | Moderate |
| 48. Fall Back On | Verb | support, backup plans | Moderate |
| 49. Defer To | Verb | expertise, authority | Moderate |
| 50. Have Confidence In | Verb phrase | people, abilities | Strong |
| 51. Credit | Verb | claims, statements | Weak-Moderate |
| 52. Bet On | Verb (informal) | outcomes, character | Moderate |
| 53. Presume | Verb | assumptions, claims | Weak (mild) |
| 54. Repose Confidence In | Verb phrase (formal) | leaders, institutions | Moderate |
| 55. Stake Everything On | Verb phrase | high-risk decisions | Strong (extreme) |
Closest, Contextual & Related Alternatives
| Category | Words |
|---|---|
| Closest (near-exact) | confidence, faith, rely on, depend on |
| Contextual (situational) | credence, confide in, entrust, defer to |
| Related (broader family) | belief, reliance, credibility, assurance |
Synonyms by Strength / Intensity
| Intensity | Words |
|---|---|
| Mild | presume, sureness, reckon on, dependency |
| Moderate | confidence, belief, count on, rely on |
| Strong | faith, conviction, credence, bank on |
| Extreme | entrust, repose faith in, swear by, stake everything on |
Formal vs Informal
| Formal | Informal |
|---|---|
| credence | buy into |
| fealty | go by |
| troth | bet on |
| repose faith in | bank on |
| vest confidence in | swear by |
“Trust” vs Similar Words
Trust vs Confidence
“Confidence” often points inward — belief in one’s own or someone’s ability — while “trust” points outward, toward reliability, honesty, or intentions. You have confidence in a surgeon’s skill; you trust her not to cut corners.
Trust vs Faith
“Faith” typically implies belief without needing proof, sometimes even in the face of doubt. “Trust” is often built gradually through evidence and experience, making it feel more earned than faith.
Trust vs Belief
“Belief” is broader and more cognitive — you can believe a fact without any relational stake in it. “Trust” always implies some vulnerability or reliance on the person or thing in question.
Trust vs Reliance
“Reliance” is more mechanical and can exist without any emotional component, as in relying on a bridge to hold weight. “Trust” usually carries an emotional or moral dimension that pure reliance doesn’t require.
Words Related But Not Exact Synonyms
- Loyalty — devotion or allegiance, which can exist without full trust.
- Respect — admiration for someone’s qualities, not necessarily reliance on them.
- Hope — a wish for a good outcome, without the basis in reliability that trust implies.
- Vouch For — to actively guarantee someone’s character, a stronger commitment than simply trusting them.
- Optimism — a general positive outlook, not tied to trust in a specific person or thing.
Words Related
Honesty, integrity, dependability, credibility, transparency, loyalty, sincerity, openness, reliability, security.
Common Collocations
Trust issues, trust fund, trust fall, build trust, break trust, breach of trust, blind trust, mutual trust, restore trust, earn trust, trust exercise, self-trust.
Antonyms
| Antonym | Context |
|---|---|
| Distrust | general, most direct opposite |
| Suspicion | motives, behavior |
| Doubt | claims, statements |
| Skepticism | ideas, promises |
| Wariness | caution around people or situations |
| Disbelief | facts, stories |
How to Choose
If you’re describing an internal feeling of confidence, “faith,” “confidence,” or “belief” all work well. If you need a verb for the act of relying on someone, “rely on,” “depend on,” or “count on” are the most versatile choices. For formal or legal writing, reach for “credence,” “good faith,” or “repose faith in.” For casual speech, “bank on,” “bet on,” or “swear by” sound natural without feeling stiff. And when the emphasis is on giving someone responsibility, “entrust” captures that better than any other word on this list.
Common Mistakes
A frequent mistake is treating “confidence” and “trust” as fully interchangeable — confidence often concerns ability, while trust concerns character and intentions, and swapping them can subtly change your meaning. Another is overusing “credibility” when “trust” is meant; credibility is what earns trust, not trust itself. Writers also sometimes reach for “faith” in contexts that call for evidence-based trust, which can make a claim sound more like blind belief than earned confidence. Finally, phrasal verbs like “bank on” and “bet on” are casual — using them in formal writing can undercut an otherwise professional tone.
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Frequently Asked Questions
What is the strongest synonym for trust?
“Entrust” and “repose faith in” carry the most weight, since both imply handing over real responsibility or belief, not just a general sense of confidence.
What’s a more formal word for trust?
“Credence,” “fealty,” and “good faith” all suit formal, legal, or historical writing better than the everyday word “trust.”
What’s an informal synonym for trust?
“Bank on,” “bet on,” and “swear by” all work well in casual conversation, especially when talking about people’s habits or reliable outcomes.
Is “confidence” the same as “trust”?
They’re closely related but not identical. Confidence often focuses on ability or competence, while trust focuses more broadly on honesty, intentions, and reliability.
What is the opposite of trust?
“Distrust” is the most direct opposite. Depending on context, “suspicion,” “doubt,” or “skepticism” may fit better.
Conclusion
“Trust” works hard as both noun and verb, which is exactly why it’s worth having sharper alternatives on hand. Whether you need the quiet certainty of “faith,” the practical reliability of “depend on,” or the formal weight of “credence,” choosing the right synonym lets you say precisely what kind of trust you mean — and that precision is, in its own way, a form of trustworthiness.
