onerous
difficult; requiring hard labor
onerous
Synonym
- arduous
- austere
- backbreaking
- burdensome
- crushing
- cumbersome
- demanding
- difficult
- distressing
- embittering
- exacting
- excessive
- exhausting
- exigent
- fatiguing
- formidable
- galling
- grave
- grinding
- grueling
- hard*
- harsh
- headache
- heavy*
- intolerable
- irksome
- laborious
- merciless
- oppressive
- overpowering
- overtaxing
- painful
- plodding
- ponderous
- pressing
- responsible
- rigorous
- serious
- severe
- strenuous
- taxing
- tiresome
- tiring
- toilsome
- troublesome
- vexatious
- weighty
Antonym
- common
- easy
- light
- trivial
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