arduous – difficult, tiring and involves a lot of effort

(Pronounced aah-dyoo-uhs)

To remember the definition of the word arduous, use the following mnemonic:

It will be hard work for you if you work for us (arduous). The job is difficult, tiring and involves a lot of effort. 

Examples of arduous in a sentence

The job was arduous but at least it paid well. 

They had an arduous journey ahead of them. 

Nobody seemed to appreciate her arduous work.