| Main Entry: | |
| 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: | 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 |