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useless

adj.
US //ˈjusɫəs// UK //jˈuːsləs// use·less
  1. 1 not working or broken (adj.)
    B1 Intermediate

    not working or not able to be used for its purpose.

    having no practical use or being incapable of functioning as intended.

    Example

    This old umbrella is useless because it has a huge hole in the top.

    Example

    The manual proved useless during the emergency, as it lacked specific instructions for the mechanical failure we were experiencing.

  2. 2 pointless or unhelpful (adj.)
    B1 Intermediate

    not helping you to achieve what you want; a waste of time.

    serving no purpose or providing no assistance in achieving a goal.

    Example

    It is useless to argue with him when he has already made up his mind.

    Example

    The committee realised that further debate was useless once the budget had been officially vetoed by the board.

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  1. 3 not good at a task (adj.)
    B2 Upper Intermediate Informal

    not having the skill to do something well.

    lacking competence or skill in a specific area of activity.

    Example

    I am useless at maths, so I always use a calculator for simple sums.

    Example

    Despite his enthusiasm for the sport, he admitted he was entirely useless at navigating the boat in high winds.

  2. 4 lazy or worthless person (adj.)
    C1 Advanced Informal Vulgar

    describes a person who is lazy or does not help at all.

    used as a derogatory descriptor for a person perceived as lazy, unreliable, or having no value to a group.

    Example

    My brother is useless; he just sits on the sofa while I do all the housework.

    Example

    The manager was fired after his staff complained that he was a useless leader who ignored every crisis.

    Usage

    Often used as a direct insult or in expressions of extreme frustration.

    Teacher's tip

    While not always a 'swear word', calling a person useless is a strong personal insult; learners should use it with caution.

Origin

From use + -less.

Idioms1 entry

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