Pū'er-ile-ness or Pū'er-il'i-ty, n.

noun

[Fr. puérilité, Sp. puerilidad, It. puerilità, Lat. puerilitas.]

  1. The quality of being puerile; childishness.
  2. That which is puerile or childish; especially, an expression in discourse which is flat, insipid, or childish.