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O/Onerous
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Onerous

Difficult; burdensome; heavy to bear

adjective
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Imagine This

It is a difficult job for one person to rule over a town, handle all its paperwork, and make all the decisions for the town folks. When one guy picks up the backpack for his two-week hiking trip, he said, 'The weight is on me.'

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Sounds Like

OH-nuh-ruhs

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Looks Like

One_rules

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Remember This

From Latin onerosus meaning burdensome; 'onus' means burden. The word emphasizes a heavy burden or obligation.

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Other Forms

onerouslyadverb
onerousnessnoun
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Connect With

burdensome, burden, load, taxing, arduous

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Note

Onerous is typically used to describe tasks, duties, laws, or obligations that are burdensome or oppressive; not interchangeable with 'easy' or 'light' contexts.

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Study Deeper

Examples
  • The new compliance requirements were an onerous burden for small businesses.
  • Clerical duties can be an onerous part of a trainee's job.
Synonyms
burdensometaxingarduousheavyoppressive
Antonyms
easymanageableunburdensome
Etymology

From Latin onerosus 'burdensome', from onus 'burden'.

Mnemonic

Mnemonic: Onus means burden; add -er- and -ous to form onerous, meaning full of burden. Remember that an onerous task is something burdensome and heavy to bear.