arduous: Meaning and Definition of
ar•du•ous
Pronunciation: (är'j-us or, esp. Brit., är'dy-), [key] — adj.
- requiring great exertion; laborious; difficult: an arduous undertaking.
- requiring or using much energy and vigor; strenuous: making an arduous effort.
- hard to climb; steep: an arduous path up the hill.
- hard to endure; full of hardships; severe: an arduous winter.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.