trustworthiest
Maximally deserving confidence
Trustworthiest is the superlative of trustworthy—the most deserving of confidence or reliance.
The form is correct but awkward, so speakers often prefer most trustworthy: She's the most trustworthy person I know.
Still, trustworthiest appears: He proved himself the trustworthiest of the group.
Consistently loyal and true
- devotedLoyally and lovingly attached
- steadfastFirmly loyal, unshakeable
- trueAccurate or loyal
- dedicatedWholly committed to something
committed · constant · staunch · unwavering · unswerving · allegiant · supportive · true-blue
Worthy of trust
- consistentNot varying or contradicting
- stableSecure and unchanging
- provenEstablished as fact
- unfailingNever failing or weakening
credible · responsible · accountable · punctual · predictable · tried-and-true · guaranteed · certified
Accurate and sincere
- sincereGenuinely felt, not feigned
- candidHonest and direct
- frankOpen and direct
- forthrightDirectly honest in manner
genuine · transparent · straightforward · veracious · authentic · upfront · aboveboard · plainspoken
Conforming to moral principles
- virtuousMorally excellent, principled
- honorableHaving high moral standards
- scrupulousThorough and principled
- incorruptibleImpossible to morally compromise
conscientious · righteous · moral · upright · noble · fair · decent · just
faithful
Consistently loyal and true
dedicated · committed · constant · staunch · unwavering · unswerving · allegiant · supportive · true-blue · dependable
dependable
Worthy of trust
- consistentNot varying or contradicting
- stableSecure and unchanging
- provenEstablished as fact
unfailing · credible · responsible · accountable · punctual · predictable · tried-and-true · guaranteed · certified · foolproof
truthful
Accurate and sincere
forthright · genuine · transparent · straightforward · veracious · authentic · upfront · aboveboard · plainspoken · direct
ethical
Conforming to moral principles
- virtuousMorally excellent, principled
- honorableHaving high moral standards
- scrupulousThorough and principled
incorruptible · conscientious · righteous · moral · upright · noble · fair · decent · just · high-minded
trustworthiestflakiest
Most erratic or crumbly
shadiest · slimiest · crookedest · dodgiest
trust, trusting, worthy, trustworthy, trusted, mistrust, distrust, entrust, distrustful