It seemed to him necessary, at that moment, to proclaim, by some habitual gesture of this sort, his recovered hold on the actual: he had an almost puerile wish to let his companion see that, their flight over, he had landed on his feet.
The puerility of the attempt disarmed Lily’s indignation: did it not prove how horribly the poor creature was frightened?
There are no more uses of "puerile" in the book.
Show samples from other sources
The film is filled with clever puns and puerile pranks.
Her campaign proved her to be puerile and feckless.