Undependable and Untrustworthy

Undependable

Undependable adjective - Not worthy of reliance or trust.
Usage example: an undependable assistant

Untrustworthy is a synonym for undependable in trust topic. In some cases you can use "Untrustworthy" instead an adjective "Undependable", when it comes to topics like irresponsible. popular alternative

Untrustworthy

Untrustworthy adjective - Not worthy of trust or belief.
Usage example: an untrustworthy person

Undependable is a synonym for untrustworthy in trust topic. You can use "Undependable" instead an adjective "Untrustworthy", if it concerns topics such as unreliable, unfaithful. popular alternative
Cite this Source
Untrustworthy and Undependable. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/undependable/untrustworthy
Undependable & Untrustworthy. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/undependable/untrustworthy>.
Untrustworthy or Undependable. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/undependable/untrustworthy.
Google Ngram Viewer shows how "undependable" and "untrustworthy" have occurred on timeline