59 entries under doubtful topic. ×
| undecided(adjective, uncertain, nervous, insecure) | |
| weak(adjective, light, slight, thin, uncertain) | |
| arguable(uncertain, unsure) | |
| betwixt and between(expression, adjective, idiom, uncertain, nervous) | |
| borderline(adjective, uncertain, nervous, shaky) | |
| chancy(uncertain, unsure) | |
| debatable(uncertain, unsure) | |
| diffident(uncertain, nervous, insecure, unsure) | |
| disputable(uncertain, unsure) | |
| distrustful(adjective, uncertain, nervous, shaky) | |
| dubitable(uncertain, unsure) | |
| far-fetched(uncertain, unsure) | |
| fishy(wrong, uncertain, immoral, unsure) | |
| fluctuant(adjective, uncertain, nervous, shaky) | |
| improbable(uncertain, unsure) | |
| in a quandary(expression, adjective, idiom, uncertain, nervous) | |
| indeterminate(adjective, loose, uncertain, nervous) | |
| lacking(adjective, uncertain, nervous, shaky) | |
| mistrustful(adjective, uncertain, nervous, shaky) | |
| moot(uncertain, unsure) |
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| APA | Smart Define. (2016). fly-by-night thesaurus. Retrieved September 30, 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 30, 2026). |
| Harvard | Smart Define 2016, fly-by-night thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/fly-by-night/thesaurus/synonyms>. |
| MLA | Smart Define. "fly-by-night thesaurus" 26 February 2016. Web. 30 September 2026. <https://smartdefine.org/fly-by-night/thesaurus/synonyms> |