非主流

fēizhǔliú
  1. alternative
  2. non-mainstream

CEDICT

  1. (often attributive) non-mainstream; underground; alternative
  2. non-mainstream; underground; alternative

Wiktionary

  1. 一种网络文化，通常是指二十世纪九零年代后正处于青少年时期的群体行为的一种概括。
  2. 非主流，指不属于主流的事物，如文化上的次文化，宗教上的异端等。

維基詞典

Entry Composition

1 非 fēi
  1. to not be; not
  2. wrong; incorrect
  3. non-; un-; in-; de-
  4. to reproach; to blame
  5. (coll.) to insist on; simply must
2 主流 zhǔliú
  1. main stream (of a river)
  2. fig. the essential point
  3. main viewpoint of a matter
  4. mainstream (culture etc)

Related entries

备选 bèixuǎn alternative (plan, arrangement, strategy etc)
另类 lìnglèi
  1. offbeat
  2. alternative
  3. avant-garde
  4. unconventional
  5. weird
替代品 tìdàipǐn
  1. substitute
  2. alternative
小众 xiǎozhòng
  1. minority of the population
  2. non-mainstream (activity, pursuit etc)
  3. niche (market etc)