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useless - definition and synonyms


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adjective useless pronunciation in British English /ˈjuːsləs/
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  1. useless objects have no purpose or cannot do what they were designed to do

    This technology is useless if you can’t operate it.

    Why do you keep this completely useless umbrella?

    prove useless:

    Most of his inventions proved useless.

    1. a.
      useless activities are not effective in achieving the purpose that 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.

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

      Don’t ask Geoff – he’s useless!

      useless at something (=very bad at it):

      I’m useless at cooking.

    3. 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.

derived words


noun [uncountable]

sea lion

in an online conversation, repeatedly asking a person questions which suggest that you are interested in what they are talking about, but are actually intended to annoy them

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Open Dictionary


an electric skateboard

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