All childish antonyms
child·ish
C c adj childish
- wise — having the power of discerning and judging properly as to what is true or right; possessing discernment, judgment, or discretion.
- adult — An adult is a mature, fully developed person. An adult has reached the age when they are legally responsible for their actions.
- mature — complete in natural growth or development, as plant and animal forms: a mature rose bush.
- sensible — having, using, or showing good sense or sound judgment: a sensible young woman.
- serious — of, showing, or characterized by deep thought.