Without use or possibility to be used.
‘This fork has prongs that are bent. It's useless now.’;
Unregardful of the Muses; disregarding the power of poetry; unpoetical.
Unhelpful, not useful; pointless (of an action).
‘I think it's useless to keep this discussion going. It's like talking to a wall.’; ‘I tried my best to make him quit smoking, but my efforts were useless. He now smokes six packs a day.’;
good-for-nothing; not dependable.
‘Bill never mows the lawn, takes out the trash or anything. He's useless, but I love him anyways.’;
unable to do well at a particular task or thing. Useless is mildly insulting.
‘My brother is useless at most computer games, but he is an awesome PS2 player.’; ‘Why do you keep trying? You're obviously useless at it.’;
Having, or being of, no use; unserviceable; producing no good end; answering no valuable purpose; not advancing the end proposed; unprofitable; ineffectual; as, a useless garment; useless pity.
‘Not to sit idle with so great a giftUseless, and thence ridiculous.’; ‘Useless are all wordsTill you have writ "performance" with your swords.The other is for waiving.’; ‘Waiving all searches into antiquity, in relation to this controversy, as being either needless or fruitless.’; ‘Even our blessed Savior's preaching, who spake as never man spake, was ineffectual to many.’;
having no beneficial use or incapable of functioning usefully;
‘a kitchen full of useless gadgets’; ‘she is useless in an emergency’;
‘a curiously unhelpful and useless manual’;