Also found in: Thesaurus, Idioms.
Blandly conventional, especially when considered as typical of white middle-class America: "The proven ability of blacks to appeal to mainstream America ... shattered forever the mythology that only white-bread 'mainstream' culture could sell" (Joel Kotkin).
any white or light-colored bread made from finely ground, usu. bleached, flour.
usage: This term is used with disparaging intent, implying a contempt for the values of the white middle class.—adj. Informal: Disparaging.
1. pertaining to or characteristic of the white middle class; bourgeois: white-bread liberals.
2. bland; conventional.