2
dangerous(adjective, hard, evil, rough, nasty)
2
debased(adjective, wicked, perverted)
2
debauched(adjective, evil, corrupt, wicked, dishonest)
2
decadent(adjective, corrupt, wicked, depraved, perverted)
2
degraded(adjective, immoral)
2
discreditable(adjective, low, cruel, corrupt, unreasonable)
2
dissipated(adjective, corrupt, wicked, depraved, perverted)
2
double-faced(adjective, dishonest)
2
duplicitous(adjective, mean, bad, base, dishonest)
2
fake(adjective, wrong, immoral, unprincipled)
2
filthy(adjective, nasty, vulgar)
2
flagitious
2
furtive(adjective, mean, smooth, dishonest, cunning)
2
guileful(adjective, mean, smooth, smart, false)
2
impish(adjective, mean, smooth, wicked, cunning)
2
impure(adjective, wrong, evil, corrupt, wicked)
2
inconstant(adjective, dishonest, immoral, rotten, untrustworthy)
2
indecent(adjective, wrong, evil, nasty, corrupt)
2
indirect(dishonest, cunning, deceitful, crooked, sly)
2
intentionally untrue
10 years ago|19k views|share |citing 
APASmart Define. (2016). unscrupulous thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/unscrupulous/thesaurus/synonyms
ChicagoSmart Define. 2016. "unscrupulous thesaurus" https://smartdefine.org/unscrupulous/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, unscrupulous thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/unscrupulous/thesaurus/synonyms>.
MLASmart Define. "unscrupulous thesaurus" 24 March 2016. Web. 27 September 2026. <https://smartdefine.org/unscrupulous/thesaurus/synonyms>