218 entries under adjective topic. ×

1
exploiting(dishonest, immoral, rotten, untrustworthy)
1
extortionate(dishonest, immoral, rotten, untrustworthy)
1
fast and loose(expression, idiom, dishonest, immoral)
1
fixed(dishonest, immoral, rotten, untrustworthy)
1
forbidden(unreasonable, improper, excessive, unwarranted)
1
forsworn(mean, bad, evil, base)
1
gone to the dogs(expression, idiom, dishonest, immoral)
1
illegal(corrupt, unreasonable, dishonest, immoral)
1
improper(corrupt, unreasonable, dishonest, deceitful)
1
inconstant(dishonest, immoral, unpredictable, rotten)
1
inept(unreasonable, improper, unwarranted, unnecessary)
1
ingenious
1
iniquitous(dishonest, immoral, rotten, untrustworthy)
1
intriguing
1
knavish(false, dishonest, immoral, cunning)
1
malevolent(mean, bad, evil, base)
1
malicious(mean, bad, evil, base)
1
mean(bad, evil, low, base)
1
misleading(mean, bad, false, dishonest)
1
mythomaniac(mean, bad, evil, base)
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APASmart Define. (2016). underhanded thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/underhanded/thesaurus/synonyms
ChicagoSmart Define. 2016. "underhanded thesaurus" https://smartdefine.org/underhanded/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, underhanded thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/underhanded/thesaurus/synonyms>.
MLASmart Define. "underhanded thesaurus" 22 January 2016. Web. 25 September 2026. <https://smartdefine.org/underhanded/thesaurus/synonyms>