1
shy
1
sinister
1
sneaking(adjective, low, dishonest, cunning, deceitful)
1
snide(adjective, dishonest, immoral, rotten, untrustworthy)
1
squalid
1
stop-at-nothing(corrupt, dishonest, immoral, fickle, untrustworthy)
1
sub-rosa(dishonest, cunning, deceitful, fickle, untrustworthy)
1
suborned(adjective, dishonest, immoral, rotten, untrustworthy)
1
surreptitious(dishonest, cunning, deceitful, sneaky, underhanded)
1
suspect
1
terrible
1
two-timing(adjective, wrong, corrupt, dishonest, immoral)
1
uncertain
1
unchaste(adjective, wrong, evil, corrupt, wicked)
1
unconscienced
1
unconscientious
1
undignified
1
undutiful(wicked, immoral, deceitful, fickle, untrustworthy)
1
unethically
1
unfaithful(adjective, wicked, dishonest, immoral, deceitful)
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APASmart Define. (2015). unethical thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/unethical/thesaurus/synonyms
ChicagoSmart Define. 2015. "unethical thesaurus" https://smartdefine.org/unethical/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, unethical thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/unethical/thesaurus/synonyms>.
MLASmart Define. "unethical thesaurus" 13 April 2015. Web. 27 September 2026. <https://smartdefine.org/unethical/thesaurus/synonyms>