Dumbing down is the deliberate oversimplification of intellectual content in education, literature, and cinema, news, video games, and culture. Originated in 1933, the term "dumbing down" was movie-business slang, used by screenplay writers, meaning: "[to] revise so as to appeal to those of little education or intelligence". Dumbing-down varies according to subject matter, and usually involves the diminishment of critical thought by undermining standard language and learning standards, thus trivializing academic standards, culture, and meaningful information, as in the case of popular culture.

In Distinction: A Social Critique of the Judgement of Taste (1979), the sociologist Pierre Bourdieu (1930–2002) proposed that, in a society in which the cultural practices of the ruling class are rendered and established as the legitimate culture, said distinction then devalues the cultural capital of the subordinate middle- and working- classes, and thus limits their social mobility within their own society.