11
outspoken(adjective, open, direct, free, easy)
11
unreserved(adjective, clear, show, open, direct)
10
above-board(adjective, direct, honest, fair, proper)
10
blunt(adjective, open, direct, free, easy)
10
unstudied(adjective, simple, clean, honest, natural)
8
childlike(adjective, simple, honest, pure, natural)
8
transparent(adjective, open, direct, free, easy)
8
trusting(adjective, open, simple, easy, clean)
8
undeceitful(adjective, artless)
7
aboveboard(adjective, open, direct, free, simple)
7
free(adjective, open, direct, easy, honest)
7
plain-spoken(adjective, open, free, honest, plain)
7
spontaneous(simple, honest, pure, natural, fresh)
7
undeceptive(adjective, artless)
7
unworldly(adjective, simple, honest, natural, straightforward)
6
ignorant(adjective, open, simple, easy, innocent)
6
downright(adjective, adverb, clear, show, open)
6
fair(adjective, good, free, friendly, appropriate)
6
fresh(adjective, ignorant, innocuous, harmless, childlike)
6
honorable(honest, fair, proper, straight, moral)
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APASmart Define. (2015). ingenuous thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/ingenuous/thesaurus/synonyms
ChicagoSmart Define. 2015. "ingenuous thesaurus" https://smartdefine.org/ingenuous/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, ingenuous thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/ingenuous/thesaurus/synonyms>.
MLASmart Define. "ingenuous thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/ingenuous/thesaurus/synonyms>