97 entries under fickle topic. ×

25
furtive(adjective, mean, smooth, smart, dishonest)
22
deceitful(adjective, mean, smooth, smart, false)
22
dishonest(adjective, mean, bad, smooth, wrong)
17
treacherous(adjective, mean, smooth, smart, false)
15
shifty(adjective, mean, smooth, smart, honest)
15
tricky(adjective, mean, smooth, keen, sharp)
13
underhanded(adjective, honest, false, dishonest, cunning)
10
double-dealing(adjective, mean, smooth, smart, false)
9
deceptive(adjective, mean, smooth, smart, false)
8
false(adjective, dishonest, cunning, deceitful, lying)
6
perfidious(adjective, false, corrupt, dishonest, immoral)
6
unprincipled(adjective, bad, wrong, false, corrupt)
5
untrustworthy(adjective, false, dishonest, cunning, deceitful)
4
lying(adjective, false, corrupt, dishonest, cunning)
3
dubious(adjective, evil, corrupt, dishonest, irregular)
3
questionable(adjective, evil, corrupt, dishonest, irregular)
3
traitorous(adjective, mean, smooth, smart, false)
3
untruthful(adjective, false, corrupt, dishonest, cunning)
2
amoral(corrupt, dishonest, immoral, untrustworthy)
2
fake(adjective, bad, wrong, false, dishonest)
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APASmart Define. (2015). underhand thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/underhand/thesaurus/synonyms
ChicagoSmart Define. 2015. "underhand thesaurus" https://smartdefine.org/underhand/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, underhand thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/underhand/thesaurus/synonyms>.
MLASmart Define. "underhand thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/underhand/thesaurus/synonyms>