39 entries under deceitful topic. ×

8
shrewd(adjective, smooth, sharp, dishonest, cunning)
8
sneaking(adjective, guile, insidiousness, characteristic, tricky)
7
furtive(adjective, mean, smooth, dishonest)
6
calculating(adjective, dishonest, sly, crafty)
6
clever(adjective, sensitive, intelligent, cunning)
6
two-faced(adjective, false, dishonest, cunning)
5
secret(adjective, sneaky, characteristic, mean, smooth)
5
sharp(adjective, mean, smooth, cunning)
5
unscrupulous(adjective, mean, smooth, dishonest, cunning)
4
delusive(adjective, characteristic, mean, smooth, deception)
4
delusory(adjective, characteristic, deception, false, deceit)
4
dishonorable(adjective, characteristic, mean, smooth, dishonest)
4
shady(adjective, dishonest, cunning, dubious)
4
slippery(adjective, smooth, sharp, false, dishonest)
3
double-crossing(adjective, characteristic, dishonest, cunning, deceit)
3
double-dealing(adjective, mean, smooth, dishonest, cunning)
3
fraudulent(adjective, false, dishonest, cunning)
3
two-timing(adjective, characteristic, dishonest, cunning, deceit)
3
unethical(adjective, dishonest, cunning, sneaky)
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APASmart Define. (2015). insidious thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/insidious/thesaurus/synonyms
ChicagoSmart Define. 2015. "insidious thesaurus" https://smartdefine.org/insidious/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, insidious thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/insidious/thesaurus/synonyms>.
MLASmart Define. "insidious thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/insidious/thesaurus/synonyms>