Mawson, C.O.S., ed. (1870–1938). Roget’s International Thesaurus. 1922.
Class IV. Words Relating to the Intellectual FacultiesDivision (I) Formation of Ideas
Section I. Operations of Intellect in General
450a. Absence or want of Intellect.
NOUN:ABSENCE OF INTELLECT, want of intellect [See Intellect]; apartments to let [slang], nobody home [slang], unintellectuality; imbecility [See Imbecility. Folly]; brutality, brute instinct, brute force.ADJECTIVE:unendowed with -, void of- reason; unintelligent (imbecile) [See Imbecility. Folly].