0 the quality of being very difficult or needing a lot of effort:
I had no idea of the onerousness of the journey that was to follow.
They complained about the onerousness and the difficulty of routine work.
They earn vastly different wages, although the onerousness of work and the skill requirements are very similar.
She found membership of the council a burden of great onerousness.
It is the very onerousness of the guillotine that suggests that there is a determination to restrict proper and appropriate debate.
The onerousness could come from the level of compensation being sought.
