27 entries under immature topic. ×

16
underdeveloped(adjective, dull, weak, simple, slow)
13
rudimentary(adjective, simple, coarse, natural, straightforward)
12
backward(adjective, slow, precede)
11
embryonic(adjective, slight, limited, insufficient, indefinite)
11
incipient(adjective, young, latent, unripe)
10
latent(adjective, hidden, dormant, latent)
10
primitive(adjective, simple, natural, original, crude)
10
young(adjective, slight, limited, insufficient, inexperienced)
9
green(adjective, simple, natural, inexperienced, unrefined)
9
potential(adjective, promising, latent)
8
inexperienced(adjective, inexpert, young, untrained)
8
raw(adjective, simple, natural, bare, inexperienced)
5
inchoate
5
unripe(adjective, hidden, inexperienced, concealed, young)
4
untrained(adjective, simple, coarse, natural, raw)
3
behindhand
3
primordial
3
unprogressive
2
half-baked
2
untaught(adjective, simple, coarse, natural, raw)
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APASmart Define. (2015). undeveloped thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/undeveloped/thesaurus/synonyms
ChicagoSmart Define. 2015. "undeveloped thesaurus" https://smartdefine.org/undeveloped/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, undeveloped thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/undeveloped/thesaurus/synonyms>.
MLASmart Define. "undeveloped thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/undeveloped/thesaurus/synonyms>