Puerility
Part of speech: noun
Definition: The state, quality, or condition of being childish or puerile.
Childishness
Part of speech: noun
Definition: The state of being childish.Childish behaviour.
Puerility as a noun is the state, quality, or condition of being childish or puerile. while Childishness as a noun is the state of being childish.
Part of speech: noun
Definition: The state, quality, or condition of being childish or puerile.
Part of speech: noun
Definition: The state of being childish.Childish behaviour.
We hope you now know whether to use Puerility or Childishness in your sentence.