expression, i-adjective
useless; of no use; not fit for purpose
Describes something that is broken, ineffective, or so poor in quality that it cannot serve its intended purpose. Often used for objects, tools, or even people in a critical sense.
このプリンターはもう使い物にならない。
This printer is useless now.
彼は二日酔いで
He's hungover and useless today.