Dictionary
in•fan•tile
Pronunciation: (in'fun-tīl", -til), [key]—
adj.
1. characteristic of or befitting an infant; babyish; childish:
infantile behavior.
2. of or pertaining to infants or infancy:
infantile diseases.
3. Physical Geog.youthful (def. 5).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.