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youthful; juvenile silly
Some choices: foolish, idiotic, fatuous, puerile
Absurd, giddy, foolish, vacuous, unintelligent, childish, fatuous, immature, pointless, meaningless, idiotic, unwise, stupid, simple, puerile...
You need to stop acting in such a puerile manner and act your age.
You need to stop acting in such a puerile manner and act your age.
immature
She was making puerile excuses about not wanting to get up for school this morning. That sentence works because it means to be trivial or childish about something.
Belonging to childhood; juvenile. Immature; childish.
premature and puerile, petty
preposterous (:
I think you mean puerile. It means immature or childish.
Adolescent, childlike, childish, inexperienced, puerile, tender...