2
inane(dull, foolish, rash, risky, unintelligent)
2
incapable(adjective, adequate, unqualified, unable, helpless)
2
indiscreet(dull, foolish, rash, risky, unintelligent)
2
infantile
2
juvenile(adjective, childish)
2
lain
2
lay it on the line(expression, adjective, idiom, open, direct)
2
minor
2
not up to(expression, adjective, idiom, weak, inadequate)
2
open-hearted
2
outright(adjective, open, direct, free, easy)
2
outspoken(open, direct, free, honest, plain)
2
plain-spoken(adjective, open, direct, free, honest)
2
pure(adjective, simple, plain, natural, straightforward)
2
rude(simple, new, raw, crude, inept)
2
saying what one thinks(expression, adjective, idiom, open, direct)
2
simplehearted(adjective, open, smooth, simple, easy)
2
single-hearted
2
single-minded
2
sophomoric(adjective, new, raw, reckless, inept)
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APASmart Define. (2016). naïve thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/na%C3%AFve/thesaurus/synonyms
ChicagoSmart Define. 2016. "naïve thesaurus" https://smartdefine.org/na%C3%AFve/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, naïve thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/na%C3%AFve/thesaurus/synonyms>.
MLASmart Define. "naïve thesaurus" 30 March 2016. Web. 21 September 2026. <https://smartdefine.org/na%C3%AFve/thesaurus/synonyms>