How do you spell Arduous?
Correct spelling
arduous
Remember: ARD-U-OUS has 'u' twice, like climbing UP steep terrain twice.
Why is arduous spelled this way?
From Latin arduus, steep. Something arduous is steep climbing — effort that demands everything you have to reach the summit.
Common misspellings of arduous
ardousarduosardiusartuous
Example
The arduous journey through the mountains tested their endurance and determination.