60 entries under uncertain topic. ×
| untrustworthy(adjective, false, careless, foolish) | |
| questionable(adjective, dishonest, doubtful, deceitful) | |
| undependable(adjective, false, careless, foolish) | |
| unreliable(adjective, false, careless, foolish) | |
| unsure(adjective, nervous, dishonest, doubtful) | |
| dubious(adjective, nervous, dishonest, doubtful) | |
| shady(adjective, bad, wrong, dishonest) | |
| slippery(adjective, bad, wrong, informal, false) | |
| trustless(adjective, dishonest, doubtful, deceitful) | |
| unstable(adjective, careless, loose, foolish) | |
| untrusty(adjective, false, nervous, dishonest) | |
| iffy(adjective, nervous, doubtful, dubious) | |
| indecisive(adjective, nervous, doubtful, insecure) | |
| insecure(adjective, nervous, doubtful, dubious) | |
| unassured(adjective, nervous, dishonest, doubtful) | |
| vacillating(adjective, nervous, doubtful, dubious) | |
| hesitant(adjective, nervous, doubtful, insecure) | |
| irresolute(adjective, nervous, doubtful, insecure) | |
| rootless(adjective, moving, nervous, idle) | |
| suspect(doubtful, unsure) |
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| APA | Smart Define. (2016). fly-by-night thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/fly-by-night/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "fly-by-night thesaurus" https://smartdefine.org/fly-by-night/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2016, fly-by-night thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/fly-by-night/thesaurus/synonyms>. |
| MLA | Smart Define. "fly-by-night thesaurus" 26 February 2016. Web. 29 September 2026. <https://smartdefine.org/fly-by-night/thesaurus/synonyms> |