Ma'anar ƙamus na kalmar "ɓata mutum" ita ce hanyar rasa tunanin mutum da jin keɓewa daga kansa ko kewaye. A cikin ilimin halin ɗan adam, ƙaddamar da mutum shine yanayin lafiyar hankali wanda za'a iya siffanta shi ta hanyar jin dadi, rashin sanin kai, da rashin gaskiya ko rabuwa da tunanin mutum ko ayyukansa. Hakanan yana iya zama alamar wasu cututtukan tabin hankali kamar damuwa, damuwa, ko rauni.