Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps

Adjective: infantile  'in-fun,tI(-u)l or 'in-fun-t(u)l
  1. Indicating a lack of maturity
    "infantile behaviour";
    - childish
  2. Being, befitting or characteristic of an infant
    "infantile games"
  3. Of or relating to infants or infancy
    "infantile paralysis"

See also: immature, young

Encyclopedia: Infantile