65 entries under untrustworthy topic. ×

6
insincere(adjective, false, dishonest, cunning, deceitful)
6
shady(adjective, false, corrupt, dishonest, immoral)
5
deceptive(adjective, bad, false, dishonest, cunning)
5
mercenary(adjective, dishonest, immoral, rotten)
5
praetorian(adjective, dishonest, immoral, rotten)
5
two-faced(adjective, mean, base, false, dishonest)
4
foul(adjective, mean, base, corrupt, dishonest)
4
hypocritical(adjective, mean, bad, base, false)
4
perfidious(adjective, mean, base, false, dishonest)
4
untruthful(adjective, false, corrupt, wicked, dishonest)
3
venal(adjective, mean, base, dishonest, immoral)
2
base(adjective, mean, corrupt, dishonest, immoral)
2
cheating(adjective, false, corrupt, dishonest, cunning)
2
deceiving(adjective, mean, bad, evil, false)
2
designing(adjective, false, dishonest, cunning, deceitful)
2
faithless(adjective, mean, bad, base, dishonest)
2
lying(adjective, mean, bad, evil, false)
2
mendacious(adjective, false, dishonest, cunning, deceitful)
2
nefarious(adjective, dishonest, immoral, rotten)
2
rotten(adjective, low, dishonest, immoral)
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APASmart Define. (2016). underhanded thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/underhanded/thesaurus/synonyms
ChicagoSmart Define. 2016. "underhanded thesaurus" https://smartdefine.org/underhanded/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2016, underhanded thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/underhanded/thesaurus/synonyms>.
MLASmart Define. "underhanded thesaurus" 22 January 2016. Web. 1 October 2026. <https://smartdefine.org/underhanded/thesaurus/synonyms>