幼おさなびる

ichidan verb, intransitive verb

appear childish; act childishly

Describes behavior or appearance that seems immature or childlike, often with a negative or critical nuance. Not a common word; more typical alternatives include 子供っぽい or 幼い.

• 彼かれの言いい訳わけはどこか幼おさなびていて、大人おとなとは思おもえなかった。

  His excuse sounded somewhat childish; I couldn't believe he was an adult.

• その絵えはわざと幼おさなびたタッチで描えがかれている。

  The picture is drawn in a deliberately childlike style.