- Without use or possibility to be used.
- (slang): (of a person) unable to do well at a particular task or thing. Useless is mildly insulting.
- My brother is at most computer games, but he is an awesome PS2 player.
- Why do you keep trying? You're obviously at it.
- After trying in vain to find something useful, I gave up, deciding it was useless.
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Full Definition of useless