Synonyms and related words English
laborious
| arduous |
| assiduous |
| burdensome |
| cumbersome |
| cumbrous |
| difficult |
| diligent |
| exertive |
| exhausting |
| hard |
| hard-working |
| onerous |
| painstaking |
| straining |
| strenuous |
| troublesome |
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