oner·ous /ˈɑnərəs, ˈo-/
On·er·ous a. Burdensome; oppressive. “Too onerous a solicitude.”
Onerous cause Scots Law, a good and legal consideration; -- opposed to gratuitous.
adj : not easily borne; wearing; "the burdensome task of preparing
the income tax return"; "my duties weren't onerous; I
only had to greet the guests"; "a taxing schedule"
[syn: burdensome, taxing]