oneroso

burdensome, onerous

adjective oh-neh-ROH-zoh Rare

Origin: Latin onerosus, from onus (burden).

Also means

costly

Usage Note

Oneroso is a formal adjective describing something that imposes a heavy obligation or cost — a tax, a contract clause, or a legal duty. In civil law, a contratto oneroso is one where both parties exchange consideration, as opposed to a contratto gratuito. It is not used for physical heaviness; use pesante for that.

Examples

"Le condizioni del contratto sono molto onerose."

Natural Translation

The contract conditions are very burdensome.

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