Pu′er‐il″i‐ty (?), n.; pl.Puerilities (#). [L. puerilitas: cf. F. puérilité.] 1. The quality of being puerile; childishness; puerileness. Sir T. Browne.
2. That which is puerile or childish; especially, an expression which is flat, insipid, or silly.