ˈpyu̇(ə)rəl, -ˌrīl adjective
Etymology: French or Latin; French puéril, from Latin puerilis, from puer boy, girl, child + -ilis -ile; akin to Greek pais child — more at few
1.
a. : of or relating to childhood : boyish
puerile humility … we used to show to the world — Corra Harris
mocking is the first puerile form of wit, playing with surfaces without sympathy — George Santayana
b. : unworthy of an adult : immature , childish
the puerile and half-educated mind — Bernhard Berenson
great affairs of men in society are carried on as if they were … puerile and degrading farces — R.P.Blackmur
2. : characteristic of or resembling that of children — used of respiration
puerile breathing is louder than normal vesicular breathing — R.M.Goepp & H.F.Flippin
Synonyms: see youthful