Adjective
1. backbreaking
2. grueling, gruelling, hard, heavy, laborious, punishing, toilsome, effortful, straining
3. strenuous, effortful, difficult
4. hard
| Foreign Language Equivalents of 'arduous' | ||||||
|---|---|---|---|---|---|---|
| Language | Equivalent | Language | Equivalent | |||
| French | ardu | Spanish | ||||