[ on-er-uhs, oh-ner- ]
/ ˈɒn ər əs, ˈoʊ nər- /
burdensome, oppressive, or troublesome; causing hardship: onerous duties.
having or involving obligations or responsibilities, especially legal ones, that outweigh the advantages: an onerous agreement.
Origin of onerous
1350–1400; Middle English < Latin onerōsus, equivalent to oner- (stem of onus) burden + -ōsus -ous
on·er·ous·ly, adverbon·er·ous·ness, o·ne·ros·i·ty [oh-nuh-ros-i-tee] /ˌoʊ nəˈrɒs ɪ ti/, nounnon·on·er·ous, adjectivenon·on·er·ous·ly, adverb
non·on·er·ous·ness, nounun·on·er·ous, adjectiveun·on·er·ous·ly, adverbun·on·er·ous·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for onerosity
Then the gratuitous and the common have gained all that onerosity and property have lost.
Property, Community, are two ideas correlative to the ideas of onerosity and gratuitousness, on which they are founded.
British Dictionary definitions for onerosity
/ (ˈɒnərəs, ˈəʊ-) /
laborious or oppressive
law (of a contract, lease, etc) having or involving burdens or obligations that counterbalance or outweigh the advantages
Derived Formsonerously, adverbonerousness, noun
Word Origin for onerous
C14: from Latin onerōsus burdensome, from onus load
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