wasted time

He dislikes wasted time and is occasionally impatient to the point of acting too quickly—and thus getting it wrong.

And more than a dozen state legislatures have actually wasted time and effort on that utterly specious notion.

For six months I have wasted time trying to teach you something about business.

There is so little likelihood of my ever being given a choice, that I haven't wasted time considering.

Bassett never wasted time in praise or blame—until after the matter was concluded.

He would push anyone right straight along, and he believes my music would be wasted time.

As the big drive went on and column after column went over the top up to the hemispheres, nobody wasted time on Lee.