4
dishonorable(adjective, bad, wrong, corrupt, vile)
4
dissipated(open, light, free, corrupt, wicked)
4
dubious
4
faithless(adjective, dishonest, immoral, rotten, fickle)
4
foul(adjective, bad, wrong, evil, violent)
4
mercenary(adjective, bad, wrong, dishonest, immoral)
4
miscreant(adjective, evil, immoral, shameful, disgraceful)
4
rotten(adjective, bad, wrong, evil, violent)
4
selfish(adjective, corrupt, dishonest, sophisticated, experienced)
4
sinister(adjective, false, corrupt, dishonest, immoral)
4
slippery(adjective, bad, wrong, false, dishonest)
4
sly(adjective, corrupt, dishonest, immoral, deceitful)
4
two-faced(adjective, bad, wrong, false, corrupt)
4
unrestrained(adjective, open, light, free, wild)
4
untrustworthy(adjective, low, false, dishonest, immoral)
3
blameworthy(adjective, cruel, unreasonable, dishonest, immoral)
3
cunning(adjective, false, dishonest, deceitful, lying)
3
deceptive(adjective, false, wicked, deceitful, lying)
3
despicable(adjective, vile, shameful, dishonorable, disreputable)
3
double-dealing(adjective, false, corrupt, dishonest, immoral)
11 years ago|16k views|share |citing 
APASmart Define. (2015). unprincipled thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/unprincipled/thesaurus/synonyms
ChicagoSmart Define. 2015. "unprincipled thesaurus" https://smartdefine.org/unprincipled/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, unprincipled thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/unprincipled/thesaurus/synonyms>.
MLASmart Define. "unprincipled thesaurus" 13 April 2015. Web. 27 September 2026. <https://smartdefine.org/unprincipled/thesaurus/synonyms>