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careless

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adjective British English pronunciation: careless /ˈkeə(r)ləs/
  1. 1
    a careless person does not think about what they are doing, so they make mistakes, hurt people, or damage things

    Try not to be so careless next time!

    it was careless of someone:

    It was very careless of you to leave the medicine where the children could get it.

  2. 2
    formal not thinking or worrying enough about something
    careless of/about:

    an administration that is careless of press freedom

  3. 3
    natural and relaxed

    a lazy, almost careless gesture

    a careless laugh

    1. a.
      old-fashioned carefree

      It had been a careless, happy time.

derived words

carelessly

 British English pronunciation: carelessly  adverb

carelessness

 British English pronunciation: carelessness  noun [uncountable]

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