115 entries under adjective topic. ×

2
arrested(dull, backward, undeveloped)
2
behindhand
2
defective
2
feeble(weak, tiny)
2
green(inexperienced, young, childish, undeveloped)
2
inchoate
2
incomplete
2
latent(hidden, dormant)
2
peewee(weak, feeble, little, tiny)
2
poor
2
unfledged(inexperienced, young, childish, undeveloped)
2
unprogressive
2
unripe(hidden, inexperienced, concealed, young)
2
untimely(inexperienced, young, childish, undeveloped)
2
vestigial(simple, crude, naive, hidden)
1
atavistic(simple, rough, crude, basic)
1
austere(simple, rough, crude, basic)
1
bantam(little, undersized)
1
brutish(simple, rough, crude, basic)
1
childlike(simple, rough, crude, basic)
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APASmart Define. (2015). underdeveloped thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/underdeveloped/thesaurus/synonyms
ChicagoSmart Define. 2015. "underdeveloped thesaurus" https://smartdefine.org/underdeveloped/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, underdeveloped thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/underdeveloped/thesaurus/synonyms>.
MLASmart Define. "underdeveloped thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/underdeveloped/thesaurus/synonyms>