n-tahyl, -til]
| 1. | characteristic of or befitting an infant; babyish; childish: infantile behavior. |
| 2. | of or pertaining to infants or infancy: infantile diseases. |
| 3. | Physical Geography. youthful (def. 5). |
infantile in·fan·tile (ĭn'fən-tīl', -tĭl)
adj.
Of or relating to infants or infancy.
Displaying or suggesting a lack of maturity; extremely childish.