useless

Adjective

• Serving no purpose; without value or function.
• having no beneficial use or incapable of functioning usefully
  • "a kitchen full of useless gadgets"
  • "she is useless in an emergency"

Adj

• Without use or possibility to be used.
• Unhelpful, not useful; pointless (of an action).
• Good-for-nothing; not dependable.
• Unable to do well at a particular task or thing. Useless is mildly insulting.

Examples

• Bill never mows the lawn, takes out the trash or anything. He's useless, but I love him anyways.
• I think it's useless to keep this discussion going. It's like talking to a brick wall.
• I tried my best to make him quit smoking, but my efforts were useless. He now smokes six packs a day.
• My brother is useless at most computer games, but he is an awesome PS2 player.
• Sometimes, a rack full of consonants feels utterly USELESS for forming words.
• This fork's prongs are bent. It's useless now.
• Why do you keep trying? You're obviously useless at it.

Synonyms

good-for-nothing, unskillful, unusable, unutilizable

Antonyms

useful, skillful