useless

use|less [ `jusləs ] adjective **

useless objects have no purpose or cannot do what they were designed to do:

This technology is useless if you aren't trained to operate it.

Why do you keep this completely useless umbrella?

prove useless: Most of his inventions proved useless.

a. useless activities are not effective in achieving the purpose they were intended to achieve:

Will's parents think acting is a useless profession.

it's useless trying to do something: It's useless trying to talk to her because she never listens.

b. OFFENSIVE if someone is useless, they are not any help to you or are not capable of achieving anything:

Don't ask Jeff he's useless!

useless at something (=very bad at it): I'm useless at cooking.

c. a part of your body or mind that is useless cannot be used because of an illness or injury:

Since the stroke, my left arm has been useless.

be worse than useless

to be annoying and cause problems because of being useless:

Your brother is worse than useless.

Some of these computer programs are worse than useless.

╾ use|less|ly adverb

╾ use|less|ness noun uncount