Meaning of the word grueling in English

What does grueling mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

grueling

US /ˈɡruː.ə.lɪŋ/
UK /ˈɡruː.ə.lɪŋ/
"grueling" picture

Adjective

1.

extremely tiring and demanding

Example:
The marathon was a grueling test of endurance.
She underwent a grueling training regimen for the competition.
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