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 (ŏn′ər-əs, ō′nər-)
1. Troublesome or oppressive; burdensome. See Synonyms at burdensome.
2. Law Entailing more liabilities than benefits or imposing significant obligations.

[Middle English, from Old French onereus, from Latin onerōsus, from onus, oner-, burden.]

on′er·ous·ly adv.
on′er·ous·ness n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.onerousness - unwelcome burdensome difficulty
difficultness, difficulty - the quality of being difficult; "they agreed about the difficulty of the climb"
References in periodicals archive ?
The new road means cleaner air in the surrounding communes and less onerousness related to noise thanks to the distribution of car traffic, this investment brings tangible benefits for residents and local governments " - summed up Adam Hamryszczak.
Olayinka has never shown devastation in the face of the onerousness of his office.
from climate change" (L), and "the onerousness of taking
The uptake of the licensing scheme is likely to be highly dependent upon the cost of obtaining a licence and the onerousness of procedures and record-keeping required to establish that a diligent search has been made.
It comes down to who is the best person for the job because we all understand the onerousness of the fiduciary responsibility we owe to the shareholders.
Such research work has a particular element of onerousness attaching to it.
Indeed, some environmental advocates may favor NEPA because of its onerousness.
The onerousness of these requirements is often tied to the particular level of food-safety risk that a product poses.
Much has been written about the onerousness of overly broad discovery requests.