Mainstream

For people who check facts

Mainstream is a term most often applied in the arts – i.e., music, literature, and performance – to:

something that is not out of the ordinary or unusual;
something that is familiar to the masses;
something that belongs to an identifiable genre, such as detective fiction, horror, fantasy, or science fiction.

Hollywood movies are mainstream.

See also normal, conformism.

Antonyms

underground (culture),
off-beat,
eclectic (although an improper use of the term),
avant-garde,
special (in the context of education, where it is often used as a verb).

Related:

blogstream