noun
Refers to a person who betrays or rises against a group, cause, or authority. Often used in historical or dramatic contexts.
彼は組織の逆徒として追放された。
He was expelled from the organization as a traitor.
逆徒たちは城に火を放った。
The rebels set fire to the castle.
Compound of 逆 (reverse, oppose) and 徒 (follower, party). The exact historical derivation is uncertain, but the kanji combination conveys the idea of a follower who turns against their group.