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adj. Troublesome or oppressive; burdensome. See Synonyms at burdensome.

adj. Law Entailing obligations that exceed advantages.

adj. imposing or constituting a physical, mental, or figurative load which can be borne only with effort.

adj. Burdensome; oppressive.

Burdensome; oppressive.

In Scots law, imposing a burden in return for an advantage; being for a consideration: as, an onerous contract: opposed to gratuitous.

Synonyms 1. Heavy, weighty, toilsome.

adj. not easily borne; wearing

"Internet broadcasters have been subject to what they call onerous rates since a ruling by the Copyright Royalty Board in June of 2007."

heavy   

gratuitous   

onerous cause    onerous title   

onus    exonerate    exoneration   

burdensome    oppressive   

burdensome    irksome    arduous    time-consuming    unenviable    daunt    unfavourable    toilsome    vexatious    humiliate