of or pertaining to any of various substances used in the treatment of psychosis, esp. schizophrenia, and acute or severe states of mania, depression, or paranoia
noun
2. Also called: major tranquilizer, neuroleptic
any such substance, as the phenothiazines
Word origin
[1950–55; anti- + psychotic]This word is first recorded in the period 1950–55. Other words that entered Englishat around the same time include: International Gothic, allograph, point spread, point-of-sale, speech recognitionanti- is a prefix meaning “against,” “opposite of,” “antiparticle of,” used in the formationof compound words (anticline); used freely in combination with elements of any origin (antibody; antifreeze; antiknock; antilepton)