waste of time

Definitions of waste of time
1

n the devotion of time to a useless activity

“the waste of time could prove fatal”
Type of:
dissipation, waste, wastefulness
useless or profitless activity; using or expending or consuming thoughtlessly or carelessly

Sign up, it's free!

Whether you're a student, an educator, or a lifelong learner, Vocabulary.com can put you on the path to systematic vocabulary improvement.