childish
/ˈt͡ʃaɪldɪʃ/
Proposed by a contributor, not yet supported by evidence.
Sense 1
Meaning · English
Immature in thought or behaviour.
Adjective
Examples
Your childish temper tantrums are not going to change my decision on this matter.
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Sense 2
Meaning · English
Suitable for or expected of a child.
Adjective
Examples
This game is very childish.
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Common questions
What does “childish” mean?
Immature in thought or behaviour.
Is “childish” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.