| Main Entry: | infantile |
| Part of Speech: | adjective |
| Definition: | babyish |
Synonyms: |
childish, immature, juvenile, sophomoric, youthful |
Antonyms: |
mature |
| Main Entry: | babyish |
| Part of Speech: | adjective |
| Definition: | acting like an infant |
Synonyms: |
baby, childish, foolish, immature, infantile, juvenile, kid stuff, puerile, silly, sissy, sissyish, spoiled |
Antonyms: |
grown-up, mature |
| Main Entry: | childish |
| Part of Speech: | adjective |
| Definition: | immature, silly |
Synonyms: |
adolescent, baby, babyish, callow, childlike, foolish, frivolous, green, infantile, infantine, innocent, jejune, juvenile, kid stuff, naive, puerile, unsophisticated, young, youthful |
| Notes: | childlike refers to a person's temperament, whereas childish refers to a person's behavior |
Antonyms: |
adult, mature, sensible, serious, 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: | infant/infantile |
| Part of Speech: | adjective |
| Definition: | very young |
Synonyms: |
baby, babyish, callow, childish, childlike, dawning, developing, early, emergent, green*, growing, immature, infantine, initial, juvenile, kid, naive, nascent, newborn, puerile, tender, unfledged, unripe, weak, youthful |
Antonyms: |
adult, grown-up, mature |
| Main Entry: | juvenile |
| Part of Speech: | adjective |
| Definition: | childish |
Synonyms: |
adolescent, babyish, beardless, blooming, boyish, budding, callow, childlike, developing, formative, fresh, girlish, green, growing, immature, inexperienced, infant, infantile, jejune, junior, kid stuff, milk-fed, naive, pubescent, puerile, teenage, tender, undeveloped, unfledged, unripe, unsophisticated, unweaned, vernal, young, younger, youthful |
Antonyms: |
adult, grown-up, mature |
| Main Entry: | puerile |
| Part of Speech: | adjective |
| Definition: | childish |
Synonyms: |
babyish, babylike, callow, foolish, green*, immature, inane, inexperienced, infantile, irresponsible, jejune, juvenile, naive, petty, ridiculous, silly, trivial, unfledged, ungrown, weak, young |
Antonyms: |
adult, mature |