Middle-brow

Characteristically, the middle-brow novel was thus written for and by middle-class women, and could be stigmatised, to use Adorno's term, as a middle-class, bourgeois activity.

Source: wiktionary

'Middle-brow' literature — not to beat about the bush — is inferior literature adapted to the special tastes and needs of the middle class and of those who consciously or not adopt the values of that class.

Source: wiktionary

David Thorns sets out Suburbia (1973) as a study in which he aims to demonstrate that disdain for the 'middle-brow, conformist, respectable, uninspiring members of society who are quite content to potter around in their own rather limited world' was in fact a view that was 'divorced from the realities of suburban life'.

Source: wiktionary

The high-brow would like to get rid of the middle-brow, but the middle-brow outnumbers him.

Source: wiktionary