untrustworthy

adjective

un·​trust·​wor·​thy ˌən-ˈtrəst-ˌwər-t͟hē 

: not dependable or worthy of confidence : not trustworthy

an untrustworthy person

an untrustworthy source

Examples of untrustworthy in a Sentence

Recent Examples on the Web

Specifically, cues setting expectations of a disappointing or untrustworthy result will reduce motivation. — Christopher Miller, The Conversation, 15 Oct. 2026

Salton is devious and untrustworthy, but is Batter’s only clear path to a promotion. — Leigh Haber, Los Angeles Times, 13 Oct. 2026

These small transgressions added up to a sense of ourselves as special, exempt from the rules—but also disliked, distrusted, untrustworthy, apart. — Literary Hub, 30 Sep. 2026

Further, the firm’s rationale for ignoring the threat seemed untrustworthy. — Ashley Belanger, ArsTechnica, 22 Sep. 2026

Word History

First Known Use

circa 1846, in the meaning defined above

Rhymes for untrustworthy

• creditworthy
• blameworthy
• newsworthy
• noteworthy
• praiseworthy
• trustworthy
• unworthy
• worthy