Anti-intellectualism is hostility towards and mistrust of intellect, intellectuals, and intellectual pursuits, usually expressed through the derision of education, philosophy, literature, art, and science, as impractical and contemptible. Alternatively, self-described intellectuals who allegedly fail in adhering to rigorous standards of scholarship may be described as anti-intellectuals, although pseudo-intellectualism is a more commonly, and perhaps more accurately, used description for this phenomenon.
In public discourse, anti-intellectuals are usually perceived and publicly present themselves as champions of the common folk—populists against political elitism and academic elitism—proposing that the educated are a social class detached from the everyday concerns of the majority, and that they dominate political discourse and higher education.
Because "anti-intellectual" can be pejorative, defining specific cases of anti-intellectualism can be troublesome; one can object to specific facets of intellectualism or the application thereof without being dismissive of intellectual pursuits in general. Moreover, allegations of anti-intellectualism can constitute an appeal to authority or an appeal to ridicule that attempts to discredit an opponent rather than specifically addressing his or her arguments.
Anti-intellectualism has been used by totalitarian dictatorships to oppress political dissent. Perhaps its most extreme political form was during the 1970s in Cambodia under the rule of Pol Pot and the Khmer Rouge, when people were killed for being academics or even for merely wearing eyeglasses (as it suggested literacy) in the Killing Fields.