98 entries under open topic. ×

8
trusting(adjective, simple, easy, clean)
7
aboveboard(adjective, direct, free, simple)
7
free(adjective, direct, easy, honest)
7
plain-spoken(adjective, free, honest, plain)
6
ignorant(adjective, simple, easy, innocent)
6
downright(adjective, adverb, clear, show)
6
truthful(adjective, good, direct, free)
6
undisguised(adjective, good, direct, free)
5
real(adjective, good, direct, free)
5
true(adjective, honest, fair, proper)
4
easy(free, honest, plain, blunt)
4
heart-to-heart(adjective, direct, free, easy)
4
inartificial(adjective, smooth, simple, easy)
4
on the level(expression, adjective, idiom, good)
4
plainspoken(adjective, clear, show, honest)
4
trustworthy(honest, fair, proper, straight)
4
unfeigned(adjective, good, simple, easy)
4
uninhibited(adjective, direct, free, easy)
4
upfront(adjective, direct, fair, proper)
4
veracious(adjective, honest, fair, proper)
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APASmart Define. (2015). ingenuous thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/ingenuous/thesaurus/synonyms
ChicagoSmart Define. 2015. "ingenuous thesaurus" https://smartdefine.org/ingenuous/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, ingenuous thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/ingenuous/thesaurus/synonyms>.
MLASmart Define. "ingenuous thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/ingenuous/thesaurus/synonyms>