Synonyms of mainstream

1 Syllable
nave
2 Syllables
normal, middler, centrums, midmost, centers, midway, midpoint, centrum, standard, starcher, common, current, navels, usual, mainstreams, fairish, mezzo
3 Syllables
centriole, general, popular, widespread, typical, regular, mediocre, middlemost, centermost, accepted, primary, nowhere, dominant
4 Syllables
predominant, commonplace, dime-a-dozen, conventional, average, everyday, boilerplate, established, run-of-the-mill, averaged
5 Syllables
equidistance, intermediacy