Rare term; the loanword サブカルチャー is the standard modern equivalent. This form may appear in older or formal texts.
See also: サブカルチャー
This paper analyzes youth subcultures.
The common loanword for 'subculture'; 副次文化 is a rare native equivalent.
Compound of 副次 (secondary, subordinate) and 文化 (culture). The exact derivation is uncertain; it may be a calque or a native coinage for 'subculture'.