306 entries under adjective topic. ×

2
fast and loose(expression, idiom, open, light)
2
fiendish
2
hellish
2
hypocritical
2
ignominious(vile, shady, dishonorable, disreputable)
2
impure(loose, corrupt, wicked, immoral)
2
infamous(evil, vile, immoral, shady)
2
infernal
2
inglorious(vile, shady, dishonorable, disreputable)
2
lying(false, corrupt, dishonest, deceitful)
2
malevolent
2
malicious
2
mendacious(false, dishonest, deceitful, lying)
2
pitiless(vicious, savage, ruthless)
2
reprehensible
2
scandalous(wrong, corrupt, vile, dishonest)
2
sneaky(bad, wrong, false, dishonest)
2
thieving
2
underhanded(false, dishonest, immoral, deceitful)
2
unfaithful(dishonest, immoral, rotten, fickle)
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APASmart Define. (2015). unprincipled thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unprincipled/thesaurus/synonyms
ChicagoSmart Define. 2015. "unprincipled thesaurus" https://smartdefine.org/unprincipled/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, unprincipled thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unprincipled/thesaurus/synonyms>.
MLASmart Define. "unprincipled thesaurus" 13 April 2015. Web. 30 September 2026. <https://smartdefine.org/unprincipled/thesaurus/synonyms>