Related formsgru·el·ing·ly, adverb
Examples from the Web for grueling
Some might lack the fortitude—or masochism—required to endure a grueling campaign (Rubio).What Republicans Need Right Now Is a Good Internal Fight|James Poulos|November 6, 2014|DAILY BEAST
In a grueling two-hour questioning, Carter provided testimony as to why the drug can be useful in pain management.
Jaguar scored epic wins at the grueling Le Mans 24-hour race.
In June 1909, Model Ts were two of the first three finishers in a grueling New York-to-Seattle rally.
After 15 hours of grueling interrogations, he was brought before judges and placed under formal investigation.France’s Ex-Prez Sarkozy Placed Under Formal Investigation for Corruption|Tracy McNicoll|July 2, 2014|DAILY BEAST
Arriving at the end of that grueling journey, he would rest for two days before making the return trip.When the West Was Young|Frederick R. Bechdolt
It isn't a grueling competition like the 'Open' or even the 'Limit.'Lad: A Dog|Albert Payson Terhune
He had been forced to stand out on the floor for twenty cruel, grueling minutes, to be a Horrible Example to a tittering class.The Purple Heights|Marie Conway Oemler
If he was rested that day, on the morrow he would be fit for the grueling work possibly in store for him.
After a grueling examination, he admitted that he had crossed the line to smuggle in some tobacco.The Secret Wireless|Lewis E. Theiss