As citizens of London we should expect, and receive much, much better than this kind of PUERILE governance of our city.
(The London Free Press)
--- The words that passed between us were few and PUERILE in regard of the situation.
(The Shadow Line, by Joseph Conrad)
Did you know?
puerile adjective
- childishly silly and immature
(Oxford Dictionary)
--- Puerile has its roots in the Latin term "puerili," (boyish or childish) and "puer" (boy, child), by way of the French "pueril." Puerile was once simply a synonym for childish, without any derogatory implications. After all, children will be children. Depending on the context however, the modern sense can be interpreted as the harmless "for a child" or the more derisive "childish and immature."
If you tell your son that you plan on replacing his puerile furniture with something more appropriate for a teenager, that just means you want to get rid of his childhood bedroom furnishings. If he belches loudly in response to this comment, that's puerile - or immature - behaviour.
Or let's say you tell your colleague that the company needs a new strategy to address the puerile end of the market. That implies products or services for children. You write an e-mail to that effect. If his only response is to turn the print-out of your e-mail into a paper wad and hit you in the back of the head with it, that's puerile - or juvenile - behaviour.