80 entries under deceitful topic. ×

1
stealthy(mean, smooth, dishonest, cunning)
1
sub-rosa(dishonest, cunning, crooked, sneaky)
1
surreptitious(mean, smooth, dishonest, cunning)
1
two-timing(adjective, bad, wrong, false, corrupt)
0
astute(mean, smooth, cunning, knowing)
0
backbiting(adjective, false, lying, untruthful)
0
bluffing(adjective, mean, smooth, smart, false)
0
concealed(dishonest, cunning, sneaky, underhanded)
0
covert(mean, smooth, dishonest, cunning)
0
dirty dealing(expression, dishonest, underhanded)
0
elusive(adjective, mean, smooth, smart, false)
0
hoodwinking(adjective, false, lying, untruthful)
0
hush-hush(dishonest, cunning, sneaky, underhanded)
0
intriguing(mean, smooth, cunning, knowing)
0
on the QT(expression, dishonest, cunning, sneaky)
0
plotting(mean, smooth, cunning, knowing)
0
swindling(adjective, false, lying, untruthful)
0
under cover(expression, dishonest)
0
under wraps(expression, dishonest, cunning, sneaky)
0
undercover(dishonest, cunning, sneaky, underhanded)
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APASmart Define. (2016). unscrupulous thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/unscrupulous/thesaurus/synonyms
ChicagoSmart Define. 2016. "unscrupulous thesaurus" https://smartdefine.org/unscrupulous/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, unscrupulous thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/unscrupulous/thesaurus/synonyms>.
MLASmart Define. "unscrupulous thesaurus" 24 March 2016. Web. 29 September 2026. <https://smartdefine.org/unscrupulous/thesaurus/synonyms>