13
hypocritical
10
dishonest(adjective, good, open, honest, lying)
9
insincere(adjective, open, dishonest, sincere, pretended)
6
ambidextrous
6
devious
6
secretive
5
evasive
4
tricky(adjective, smooth, simple, sly, deceptive)
3
deceptive(adjective, open, dishonest, reliable)
3
indirect
3
shifty(adjective, deceitful, untrustworthy)
2
circuitous
2
cunning
2
cute(direct, obvious)
2
deceitful(adjective, dishonest, insincere)
2
false(adjective, open, sound, right)
2
insidious
2
intentionally untrue
2
lying(adjective, honest, dishonest, insincere)
2
slippery
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APASmart Define. (2016). frank thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/frank/thesaurus/antonyms
ChicagoSmart Define. 2016. "frank thesaurus" https://smartdefine.org/frank/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2016, frank thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/frank/thesaurus/antonyms>.
MLASmart Define. "frank thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/frank/thesaurus/antonyms>