86 entries under simple topic. ×

4
undeveloped(adjective, natural, whole, inexperienced)
3
childlike(adjective, weak, tender, new)
3
kid(adjective, weak, tender, pure)
3
plain(adjective, natural, straightforward, innocent)
3
sincere(adjective, plain, innocent, artless)
3
trusting(adjective, innocent, green, inexperienced)
3
unformed(adjective, rough, coarse, natural)
3
unprocessed(adjective, rough, coarse, natural)
2
candid(adjective, plain, innocent, sincere)
2
frank(adjective, innocent, artless, childlike)
2
genuine(adjective, natural, straightforward, naive)
2
gullible(fresh, raw, innocent, ignorant)
2
innocent(adjective, plain, new, natural)
2
original(plain, fresh, innocent, sincere)
2
rough(adjective, coarse, natural, fresh)
2
straightforward(adjective, natural, naive, inexperienced)
2
unaffected(adjective, plain, natural, straightforward)
2
uncomplicated(adjective, pure, natural, straightforward)
2
unrefined(adjective, rough, pure, coarse)
1
aboveboard(plain, fresh, innocent, sincere)
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APASmart Define. (2016). callow thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/callow/thesaurus/synonyms
ChicagoSmart Define. 2016. "callow thesaurus" https://smartdefine.org/callow/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, callow thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/callow/thesaurus/synonyms>.
MLASmart Define. "callow thesaurus" 28 March 2016. Web. 21 September 2026. <https://smartdefine.org/callow/thesaurus/synonyms>