— infantility /in'feuhn til"i tee/ , n.
/in"feuhn tuyl', -til/ , 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).
[ 1690-1700; infantilis. See INFANT, -ILE ]
Syn. 1. puerile, immature, weak. See childish .
Ant. 1. adult, mature.