2
uncalculating(adjective, artless)
2
unconcealed(adjective, open, direct, free, easy)
2
uncontrived(adjective, open, simple, easy, plain)
2
uncritical
2
uncultured
2
undesigning(adjective, open, smooth, simple, easy)
2
undissembling
2
uneducated(naive, unwitting)
2
unguarded(adjective, thoughtless, unwary)
2
unprejudiced(adjective, open, free, friendly, appropriate)
2
unrestricted(adjective, open, direct, free, easy)
2
unvarnished(adjective, plain, innocent, meek, unassuming)
2
up front(expression, adjective, open, direct, free)
1
above board
1
artlessness
1
avowed
1
being oneself(expression, adjective, open, simple, easy)
1
born yesterday
1
budding
1
call a spade a spade(expression, adjective, idiom, open, direct)
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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>