DictionarymadMental illness
adjective

mad

Mentally ill, in dated or offensive usage

The old novel describes the troubled king as mad.

Etymology

The Old English adjective already included the idea of an unsound mind. This historical sense survives in usage now often regarded as imprecise, dated, or offensive.

More examples

  • People once called mentally ill patients mad.
  • The play uses mad in its older psychiatric sense.
  • Calling a patient mad is now considered offensive.

Forms

mad · madder · maddest

Similar words

insane
A stronger, often offensive term; mad is regional or dated here.