True
True adjective - Firm in one's allegiance to someone or something.
Usage example: he will be true to his word
Untrustworthy
Untrustworthy adjective - Not worthy of trust or belief.
Usage example: an untrustworthy person
Both words in one sentence
-
The Codex mentions that the Turians use 'barefaced' as a synonym for 'untrustworthy' (or 'politician'), since such a person is concealing their true allegiance: neither Saren nor the warden of Purgatory have markings.
Source: Facial Markings -
Crying Wolf: Spooner believes robots are untrustworthy and no one believes him when it actually comes true.
Source: Film / I, Robot -
Keaton's true intentions may never be known, as the only living witness who might have known is the notably untrustworthy Verbal Kint.
Source: Film / The Usual Suspects
Cite this Source
Untrustworthy and True. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/true/untrustworthy
True & Untrustworthy. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/true/untrustworthy>.
Untrustworthy or True. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/true/untrustworthy.
Google Ngram Viewer shows how "true" and "untrustworthy" have occurred on timeline