mad

mad · adjective

imported

Definitions

adjective

  1. 1.

    Mentally ill; insane.

  2. 2.

    Very angry.

  3. 3.

    (Of behavior or ideas) extremely foolish; reckless.

  4. 4.

    Very enthusiastic about something.

  5. 5.

    Frantic; hectic.

Phrases & expressions

  • •
    mad as a hatter — Completely crazy.
  • •
    hopping mad — Extremely angry.
  • •
    like mad — Intensely; energetically.
  • •
    drive someone mad — Annoy greatly.
  • •
    go mad — Become insane; become very excited.
  • •
    mad about — Very enthusiastic about.
  • •
    madly in love — Intensely in love.

Related words

Antonyms: calm, rational, sane
See also: angry, crazy, furious, insane, madness
Synonyms: angry, crazy, furious, insane

Etymology

From Old English gemæded ("driven mad"), past participle of gemædan ("to make insane or foolish"), from gemād ("mad, foolish"). Related to Gothic gamaiths ("crippled") and Old High German gimeit ("foolish").