From Longman Dictionary of Contemporary Englishmiddlebrowmid‧dle‧brow /ˈmɪdlbraʊ/ adjective AEXTREME#middlebrow books, television programmes etc are of fairly good quality but are not very difficult to understand → highbrow, lowbrow
Examples from the Corpus
middlebrow• Yan's cooking program appeals to middlebrow cooks rather than gourmets.• She has a more middlebrow talent than his, and therefore seems less inclined toward introspection and reiteration. 