noun
different culture; foreign culture
Refers to a culture different from one's own, often used in contexts of cross-cultural understanding, communication, or comparison.
異文化を理解するのは難しい。
Understanding a different culture is difficult.
彼は異文化コミュニケーションを研究している。
He studies cross-cultural communication.
国際 means 'international' and refers to relations between nations, whereas 異文化 is specifically about cultural differences.
Compound of 異 (い, 'different') and 文化 (ぶんか, 'culture').