Onerous is an adjective that means requiring a great deal of effort, work, or responsibility; burdensome.
Requiring a great deal of effort, work, or responsibility; burdensome.
Common in formal, academic, legal, and professional writing; less frequent in casual speech.
Onerous is an adjective.
Onerous has high GRE relevance.
Onerous appears in GregMat vocabulary.
arduous , burdensome , demanding , exacting , taxing , weighty