D defs.my
Entry 1 sense Webster, 1913

Puerile

/pyo͞or-ēl'/ · Pu·er·ile · IPA /ˈpjʊɹɪl/
01 a. Boyish; childish; trifling; silly.
  1. 1.
    Boyish; childish; trifling; silly.
    “The French have been notorious through generations for their puerile affectation of Roman forms, models, and historic precedents.” De Quincey.