puerilisms

/ˈpjuːərɪlɪzəmz/
noun
  1. Childish or immature behaviors, actions, or remarks.
    • The manager was tired of the team's puerilisms during serious meetings.
    • His constant puerilisms made it hard for anyone to take him seriously.
    • The debate was full of puerilisms instead of thoughtful arguments.
Antonyms
What does "puerilisms" mean? | whatsthatwordmean | whatsthatwordmean