Iscariotism

derogatory uncountable

(derogatory) The behaviour of a traitor; betrayal.

Japanese Meaning

裏切り行為（＝裏切り者がとる行動や態度）

Accused of Iscariotism, he lost the trust of his colleagues and was quickly ostracized.

彼は裏切り者の振る舞いだと非難され、同僚たちの信頼を失ってすぐに孤立した。

Sense（1）

(derogatory) The behaviour of a traitor; betrayal.