80 entries under deceitful topic. ×

3
deceptive(adjective, mean, bad, smooth, smart)
3
mendacious(adjective, false, lying, untruthful)
3
unjust(adjective, dirty, dishonest, immoral, cunning)
3
untruthful(adjective, false, corrupt, dishonest)
2
conniving(adjective, mean, smooth, negative, cunning)
2
duplicitous(adjective, mean, bad, base, dishonest)
2
furtive(adjective, mean, smooth, dishonest, cunning)
2
guileful(adjective, mean, smooth, smart, false)
2
indirect(dishonest, cunning, crooked, sly)
2
lying(adjective, mean, bad, evil, false)
2
unctuous(adjective, false, lying, untruthful)
1
clandestine(dishonest, cunning, sneaky, underhanded)
1
dirty-dealing(wrong, corrupt, dishonest, immoral, cunning)
1
double-crossing(adjective, bad, wrong, false, corrupt)
1
misleading(adjective, mean, bad, evil, false)
1
oblique(dishonest, cunning, crooked, sneaky)
1
on the quiet(expression, idiom, dishonest, cunning)
1
secret(mean, smooth, dishonest, cunning)
1
secretive(mean, smooth, dishonest, cunning)
1
sneaking(adjective, mean, smooth, smart, false)
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APASmart Define. (2016). unscrupulous thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unscrupulous/thesaurus/synonyms
ChicagoSmart Define. 2016. "unscrupulous thesaurus" https://smartdefine.org/unscrupulous/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, unscrupulous thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unscrupulous/thesaurus/synonyms>.
MLASmart Define. "unscrupulous thesaurus" 24 March 2016. Web. 30 September 2026. <https://smartdefine.org/unscrupulous/thesaurus/synonyms>