238 entries under adjective topic. ×
| irresponsible(careless, foolish, dishonest, deceitful) | |
| fleeting(short, unreliable, brief, shady) | |
| untrustworthy(false, careless, foolish, uncertain) | |
| fickle(careless, foolish, dishonest, immoral) | |
| passing(unreliable, shady, transient, transitory) | |
| temporary(short, unreliable, brief, shady) | |
| ephemeral(light, weak, unreliable, brief) | |
| fugitive(noun, person, short, brief) | |
| short-lived(short, unreliable, brief, shady) | |
| evanescent(short, unreliable, brief, shady) | |
| impermanent(short, unreliable, brief, shady) | |
| questionable(uncertain, dishonest, doubtful, deceitful) | |
| undependable(false, careless, foolish, uncertain) | |
| unreliable(false, careless, foolish, uncertain) | |
| unsure(uncertain, nervous, dishonest, doubtful) | |
| dubious(uncertain, nervous, dishonest, doubtful) | |
| momentary(short, unreliable, brief, shady) | |
| transient(moving, idle, unsettled, exile) | |
| brief(short, unreliable, shady, temporary) | |
| shady(bad, wrong, uncertain, dishonest) |
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| APA | Smart Define. (2016). fly-by-night thesaurus. Retrieved September 28, 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 28, 2026). |
| Harvard | Smart Define 2016, fly-by-night thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/fly-by-night/thesaurus/synonyms>. |
| MLA | Smart Define. "fly-by-night thesaurus" 26 February 2016. Web. 28 September 2026. <https://smartdefine.org/fly-by-night/thesaurus/synonyms> |