Meaning of arduous
Pronunciation: (är'j-us or, esp. Brit., är'dy-), [key]
- 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.
- arduous (Thesaurus)