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Synonyms

onerous

American  
[on-er-uhs, oh-ner-] / ˈɒn ər əs, ˈoʊ nər- /

adjective

  1. burdensome, oppressive, or troublesome; causing hardship.

    onerous duties.

    Synonyms:
    galling, irksome, grievous, heavy
  2. having or involving obligations or responsibilities, especially legal ones, that outweigh the advantages.

    an onerous agreement.


onerous British  
/ ˈəʊ-, ˈɒnərəs /

adjective

  1. laborious or oppressive

  2. law (of a contract, lease, etc) having or involving burdens or obligations that counterbalance or outweigh the advantages

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • nononerous adjective
  • nononerously adverb
  • nononerousness noun
  • onerosity noun
  • onerously adverb
  • onerousness noun
  • unonerous adjective
  • unonerously adverb
  • unonerousness noun

Etymology

Origin of onerous

1350–1400; Middle English < Latin onerōsus, equivalent to oner- (stem of onus ) burden + -ōsus -ous

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

With generous federal estate-tax exemptions made permanent in the One Big Beautiful Bill Act last year, trusts that were created years ago to shield wealth from onerous federal estate taxes may be obsolete.

From Barron's

It accused Nexstar of pushing “to gut severance pay and insert onerous provisions into the union contract that limit workers’ ability to freely negotiate the terms of their own employment.”

From Los Angeles Times

She also raised concerns about conditions attached to the revised proposal that she described as onerous and asked for more information about how the takeover would be funded.

From The Wall Street Journal

Mr. Brundage investigates whether these onerous conditions were the product of neglect, incompetence and chaos, or whether they reflected a more deliberate policy of retribution.

From The Wall Street Journal

"It's unlikely that if Nike is faced with high tariffs in Vietnam, it'll consider India as the best alternative. India's onerous logistic costs, import duties and cumbersome customs regulations, all weigh it down," says Kishore.

From BBC