15
direct(adjective, honest, vague, equivocal)
13
half-assed
12
honest(adjective, open, fair, false, corrupt)
10
straightforward(adjective, honest)
9
frank(adjective, honest)
6
aboveboard(noun, adjective, adverb, deceitful, shady)
6
forthright(adjective, open, honest, fair, straightforward)
6
naive
6
sincere(adjective, open, fair, false, insincere)
6
truthful(adjective, open, fair, false, dishonest)
4
loyal
4
straight
4
trustworthy
3
artless
3
natural
3
simple
3
unaffected
2
candid(adjective, honest)
2
guileless
2
ingenuous
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APASmart Define. (2016). devious thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/devious/thesaurus/antonyms
ChicagoSmart Define. 2016. "devious thesaurus" https://smartdefine.org/devious/thesaurus/antonyms (accessed September 20, 2026).
HarvardSmart Define 2016, devious thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/devious/thesaurus/antonyms>.
MLASmart Define. "devious thesaurus" 24 March 2016. Web. 20 September 2026. <https://smartdefine.org/devious/thesaurus/antonyms>