1
quiet
1
racket up(expression, adjective, dishonest, immoral, rotten)
1
rascally(adjective, mean, bad, evil, base)
1
recreant(adjective, mean, bad, base, false)
1
renegade(adjective, mean, bad, evil, base)
1
reprobate(adjective, dishonest, immoral, rotten, untrustworthy)
1
scoundrelly(adjective, mean, bad, evil, base)
1
shameless
1
shorthanded
1
shrewd
1
slinky
1
snide(adjective, false, dishonest, immoral, unreliable)
1
specious(adjective, false, dishonest, deceitful, unpredictable)
1
stealth
1
sub-rosa(dishonest, cunning, deceitful, clandestine, sneaky)
1
suborned(adjective, dishonest, immoral, rotten, untrustworthy)
1
suspicious
1
tainted(adjective, dishonest, immoral, rotten, untrustworthy)
1
too great(expression, adjective, unreasonable, improper, excessive)
1
top secret(expression, clandestine, underground, undisclosed)
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APASmart Define. (2016). underhanded thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/underhanded/thesaurus/synonyms
ChicagoSmart Define. 2016. "underhanded thesaurus" https://smartdefine.org/underhanded/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, underhanded thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/underhanded/thesaurus/synonyms>.
MLASmart Define. "underhanded thesaurus" 22 January 2016. Web. 23 September 2026. <https://smartdefine.org/underhanded/thesaurus/synonyms>