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mad - definition and synonyms


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adjective mad pronunciation in American English /mæd/
Word Forms
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  1. 1
    [never before noun] informal angry
    He makes me mad, the way he keeps criticizing me.
    mad at/with: My boss is mad at me for missing the meeting.
  2. 2
    mainly British very silly or stupid
    be mad to do something: You’re mad to spend so much money on clothes.
    1. b.
      offensive an offensive way for describing someone who is mentally ill
      She was completely mad.
  3. 3
    done quickly or without thinking, in a way that is badly organized
    There were people everywhere – it was all a bit mad!



a course of study which is much shorter than a university course and focuses on the skills you need for a job, especially computer-related skills

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an ancient Roman system of underfloor heating, used to heat houses with hot air; from the Latin 'hypocaustum'

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