61 entries under adjective topic. ×

8
deceitful(adverb, shady, veraciously)
8
shady(adverb, deceitful, suspicious, disreputable)
7
devious(adverb, deceitful, shady, veraciously)
5
lying(verb, adverb, deceitful, shady)
5
dishonest(good, open, honest, lying)
5
underhanded(adverb, good, open, deceitful)
4
tricky(smooth, simple, sly, deceptive)
3
underhand
2
artful
2
covert(open, clandestine, underhanded)
2
deceptive(open, reliable)
2
fishy(honest, doubtful, suspicious)
2
furtive(sneaky, secretive)
2
sharp(dishonest, deceitful)
2
sneaky(dishonest, underhanded)
1
clandestine(secret, sly)
1
cloak-and-dagger
1
fallacious
1
false
1
fraudulent
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APASmart Define. (2015). aboveboard thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/aboveboard/thesaurus/antonyms
ChicagoSmart Define. 2015. "aboveboard thesaurus" https://smartdefine.org/aboveboard/thesaurus/antonyms (accessed September 27, 2026).
HarvardSmart Define 2015, aboveboard thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/aboveboard/thesaurus/antonyms>.
MLASmart Define. "aboveboard thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/aboveboard/thesaurus/antonyms>