|Noah Webster's Dictionary|
1. (a.) Of, pertaining to, befitting, or resembling, a child.
2. (a.) Puerile; trifling; weak.
Childish (1 Occurrence)
1 Corinthians 13:11 When I was a child, I spoke as a child, I felt as a child, I thought as a child. Now that I have become a man, I have put away childish things. (WEB KJV WEY ASV WBS NAS RSV NIV)