| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | not developed |
| Synonyms: | embryonic, immature, inchoate, nascent, rudimentary, undeveloped |
| Antonyms: | developed |
| Main Entry: | underdeveloped |
| Part of Speech: | adjective |
| Definition: | not fully developed |
| Synonyms: | immature, small, undersized, weak |
| Main Entry: | backward |
| Part of Speech: | adjective |
| Definition: | slow in growth |
| Synonyms: | arrested, behind, checked, delayed, dense, dull, feeble-minded, imbecile, late, moronic, stupid, subnormal, underdeveloped, underprivileged, undeveloped |
| Antonyms: | developing, fast, intelligent, smart |
| Main Entry: | half-baked |
| Part of Speech: | adjective |
| Definition: | stupid; not thought through |
| Synonyms: | backward, batty, birdbrained, blockheaded, boneheaded, brainless, crazy, dumb, feeble-minded, foolish, harebrained, idiotic, ignorant, ill-conceived, imbecilic, impractical, indiscreet, moronic, poorly planned, retarded, senseless, short-sighted, silly, slow, sophomoric, underdeveloped, unformed, witless |
| Antonyms: | intelligent, smart, thoughtful, wise |
| Main Entry: | immature |
| Part of Speech: | adjective |
| Definition: | young, inexperienced |
| Synonyms: | adolescent, baby, babyish, callow, childish, crude, green*, half-grown, imperfect, infantile, infantine, jejune, juvenile, kid, kidstuff, premature, puerile, raw, sophomoric, tender*, tenderfoot, underdeveloped, undergrown, undeveloped, unfinished, unfledged, unformed, unripe, unseasonable, unseasoned, unsophisticated, untimely, wet behind ears, youthful |
| Antonyms: | adult, developed, experienced, grown, mature, old |
| Main Entry: | latent |
| Part of Speech: | adjective |
| Definition: | dormant, hidden |
| Synonyms: | abeyant, between the lines, concealed, contained, covert, idle, immature, implied, in abeyance, inactive, inert, inferential, inferred, inherent, inoperative, intrinsic, invisible, involved, lurking, passive, possible, potential, quiescent, rudimentary, secret, sleeping, smoldering, suppressed, suspended, tacit, torpid, underdeveloped, underlying, undeveloped, unexposed, unexpressed, unrealized, unripe, unseen, veiled, vestigial |
| Antonyms: | active, apparent, clear, live, manifest, obvious, open, public |
| Main Entry: | primitive |
| Part of Speech: | adjective |
| Definition: | barbaric, crude |
| Synonyms: | animal, atavistic, austere, barbarian, barbarous, brutish, childlike, fierce, ignorant, naive, natural, nonliterate, preliterate, raw, rough, rude, rudimentary, savage, simple, uncivilized, uncultivated, uncultured, underdeveloped, undeveloped, undomesticated, unlearned, unrefined, unsophisticated, untamed, untaught, untrained, untutored, vestigial, wild |
| Antonyms: | cultured, modern, sophisticated |
| Main Entry: | undeveloped |
| Part of Speech: | adjective |
| Definition: | immature |
| Synonyms: | abortive, backward, behindhand, embryonic, half-baked, ignored, inchoate, incipient, inexperienced, latent, potential, primitive, primordial, unactualized, underdeveloped, unevolved, unprogressive, untaught, untrained |
| Antonyms: | adult, developed, grown, mature |
| Main Entry: | unformed |
| Part of Speech: | adjective |
| Definition: | not developed |
| Synonyms: | immature, incomplete, underdeveloped, undeveloped, unfinished |
| Antonyms: | complete, developed, grown, mature |