puerile

adjective  C2
Plain meaning

childish in a silly or annoying way

Exam-register meaning

immature, trivial, or intellectually childish

In context
naturalThe debate descended into puerile jokes.
examThe critic dismisses the argument as puerile because it avoids serious evidence.
Common collocations
puerile humourpuerile argumentpuerile behaviour
Watch out
Puerile is strongly negative; do not use it just to mean “for children”.
Word family
puerility (noun)puerilely (adverb, rare)
Quick check — can you use it?

The article was rejected for its  ______  tone and lack of evidence.

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