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Onerous has 63 synonyms. The top synonyms for onerous are arduous, arduously, backbreaking, besetting, bothersome, burdensome, burdensomely, crushing and 55 more. Browse the full list below.
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Frequently asked questions
What is a synonym for onerous?
A common synonym for onerous is arduous. Other synonyms include arduously, backbreaking, besetting, bothersome.
How many synonyms does onerous have?
Onerous has 63 synonyms listed on Thesaurasize.
What does onerous mean?
(adj): burdensome; difficult; wearing; tiring
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