Synonyms|630Antonyms|95|Broader|3Narrower|0Related|637

199 entries under adjective topic. ×

3
conspiratorial(clandestine, underground, undisclosed, sneaky)
3
criminal(evil, corrupt, dishonest, shady)
3
dubious(evil, corrupt, dishonest, irregular)
3
implicit(secret, sneaky, stealthy, latency implication)
3
mean(smooth, dishonest, cunning, deceitful)
3
misleading(false, dishonest, cunning, deceitful)
3
questionable(evil, corrupt, dishonest, irregular)
3
subtle(mean, smooth, false, cunning)
3
traitorous(mean, smooth, smart, false)
3
untruthful(false, corrupt, dishonest, cunning)
3
villainous(false, deceitful, lying, untruthful)
2
arch(mean, smooth, cunning, knowing)
2
buttoned up(verb, phrasal verb, secret, concealment)
2
closet(noun, hidden, clandestine, underground)
2
dissembling(mean, smooth, cunning, knowing)
2
fake(bad, wrong, false, dishonest)
2
improper(wrong, corrupt, dishonest, immoral)
2
ingenious(mean, smooth, sharp, smart)
2
intriguing(mean, smooth, cunning, knowing)
2
lubricious(honest, dishonest, cunning, fickle)
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ChicagoSmart Define. 2015. "underhand thesaurus" https://smartdefine.org/underhand/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, underhand thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/underhand/thesaurus/synonyms>.
MLASmart Define. "underhand thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/underhand/thesaurus/synonyms>