frivol

/ˈfrɪv.əl/
verb
  1. To waste time or money on unimportant things; to act in a silly or lighthearted way.
    • They frivoled the afternoon away playing video games instead of studying.
    • She tends to frivol away her allowance on cheap toys and candy.
    • Stop frivoling and finish your homework before dinner.
Antonyms
What does "frivol" mean? | whatsthatwordmean | whatsthatwordmean