grueling: Meaning and Definition of
gru•el•ing
Pronunciation: (gr'u-ling, gr'ling), [key]
— adj.
- exhausting; very tiring; arduously severe: the grueling Boston marathon.
—n.
- any trying or exhausting procedure or experience.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.