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insane adj (insaner, insanest) 1 said of a person: not of sound mind; mentally ill. 2 colloq said especially of actions: extremely foolish; stupid. 3 belonging or relating to, or for, the mentally ill • an insane asylum. 4 (the insane) insane people as a group (see the 4b). insanely adverb.
ETYMOLOGY: 16c: from Latin insanus.
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Consult Chambers 21st Century Dictionary, The Chambers Thesaurus (1996) or Chambers Biographical Dictionary (1997 edition with amendments). Enter your search and choose your title from the drop-down menu.
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