Definition of art brut in English:

art brut

Pronunciation /ˌɑː(t) ˈbruːt/

noun

  • Art that is created in an untaught or unsophisticated style, frequently by children or the mentally ill.

Origin

1940s. From French art brut (J. Dubuffet, 1945 or earlier), lit. ‘raw art’ from art + brut.