Grueling [adjective]

His summer training camps were both grueling and meticulous.

She applied to 28 schools and invested thousands of dollars into the process, which she described as “one of the most grueling periods” of her life.

The ten-kilometer skate climb in Val di Fiemme, Italy, is one of the most grueling courses on cross-country skiing’s World Cup circuit.

After a grueling two-week stretch with games every three or four days — including four opponents currently ranked in the top 15 — the Terps finally had a five-day layoff before Saturday’s game against Nebraska.

The first half-hour or so of Pieces of a Woman—directed by Kornél Mundruczó and starring Vanessa Kirby as a woman whose child dies just minutes after birth, and now streaming on Netflix—is so emotionally grueling that it’s almost unbearable.

Also taking a brutal toll on the former vice president is the fact that he must repeatedly, day after day, deal with the grueling physical strain of not telling reporters what he thinks about packing the Supreme Court.

Some employees have complained that work at the company can be grueling and enforced with an impersonal management style.

Vox has covered its grueling effects on the retail workers who make it happen.

All four candidates must now reboot their campaigns for the new race, without any letup after a grueling stretch through most of the year.

The discipline of Broadway’s grueling schedule locked the singer into focus.