Someone who is
anti - mainstream has a strong dislike of trendy things and people. Many subcultures have preached about being anti - mainstream, most notably punk and heavy metal. Death metal, Black metal, and a few lesser known subgenres of punk rock remain the longest standing anti - mainstream subcultures while others have either become popular (I.e punk) or merged into other more popular subcultures(I.e classic metal and thrash metal). While music subcultures have the biggest anti - mainstream message other subcultures based around religion (I.e
LaVeyan Satanism), politics(i.e non
partisans), and even literature have emerged. Most trendy things start out anti - mainstream and become popular usually after a slight change in image (I.e in the 1920's united states when white people began playing jazz it became acceptable).