Noah Webster
Childish
CHILDISH, adjective
1. Belonging to a child; trifling; puerile.
When I became a man, I put away childish things. 1 Corinthians 13:11.
2. Pertaining to a child; as childish yeas or age; childish sports.
3. Pertaining to children; ignorant; silly; weak; as childish fear.