puerile
[ pyoo-er-il ]
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Part of Speech adjective
Origin + Etymology
Late 16th century; Latin from French puéril or Latin puerilis, from puer ‘boy’
Synonyms
  • callow
  • infantile
  • immature
  • foolish
Antonyms
  • mature
  • adult
Definition
childishly foolish, immature, or trivial
Example
My teenage daughter was upset when her puerile conduct got her sent to the little kids’ table at dinner.
Usage Over Time

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