Mainstream describes what's viewed by most people in a society as "normal," like the mainstream view that everyone should get married, move to the suburbs, and have children as soon as they can.

Something that's mainstream is conventional, or the usual way of doing things. If you're talking about the mainstream in fashion, you mean the ordinary clothes that most people wear and which is found in all the malls — nothing too weird or outlandish. In the 1600s, mainstream described the prevailing current of a river, with the first recorded use of its meaning of prevailing taste or opinion in 1831.

Definitions of mainstream
  1. noun
    the prevailing current of thought
    “his thinking was in the American mainstream
    see moresee less
    type of:
    the organized beliefs of a period or group or individual
  2. adjective
    adhering to what is commonly accepted
    synonyms: orthodox
    resistant to change
    opposed to heresy
    canonic, canonical, sanctioned
    conforming to orthodox or recognized rules
    conforming, conformist
    adhering to established customs or doctrines (especially in religion)
    conventional, established
    conforming with accepted standards
    pertaining to time-honored orthodox doctrines
    unaffected by the Reformation
    established or well-known or widely recognized as a model of authority or excellence
    see moresee less
    breaking with convention or tradition
    dissentient, recusant
    (of Catholics) refusing to attend services of the Church of England
    dissident, heretical, heterodox
    characterized by departure from accepted beliefs or standards
    characterized by attack on established beliefs or institutions
    nonconforming, nonconformist
    not conforming to established customs or doctrines especially in religion
    of or relating to the body of Protestant Christianity arising during the Reformation; used of some Protestant churches especially Calvinist as distinct from Lutheran
    show more antonyms...
Word Family