puerile
pu-er-ile
adjective
Childishly silly or immature, lacking seriousness or good sense, often used disapprovingly.
"His puerile behaviour was quite embarrassing."
Thesaurus
Synonyms: adolescent, immature, juvenile, jejune
pu-er-ile
Childishly silly or immature, lacking seriousness or good sense, often used disapprovingly.
"His puerile behaviour was quite embarrassing."
Synonyms: adolescent, immature, juvenile, jejune