grueling

Not one day, scarcely one hour had been free of grueling labor.

It isn't a grueling competition like the 'Open' or even the 'Limit.'

However, it was at Pond Farm we had some of our most grueling experiences.

I had a grueling battle with him, and at the end of two hours and fifty minutes he broke my hook.

With him to show the way the swamp became merely a hard, grueling mush through boggy lowlands.

Those three hours had been the most torturing and grueling of their entire lives.

Used chiefly by newspaper reporters; as, "He was subjected to a grueling cross-examination."

He put me through a hard, grueling work-out, showing me how to snap the ball; how to charge and body check.

If he was rested that day, on the morrow he would be fit for the grueling work possibly in store for him.

Despite the grueling toil, Snowdrift found time nearly every day to slip up and visit Brent's cabin.