腐らせる くさらせる Meanings Ichidan verb, Transitive to let spoil; to leave to rot; to cause to rot; to corrode See also: 腐らす (くさらす). to discourage; to dishearten See also: 腐らす (くさらす). Kanji 腐 rot. Read as くさらす. Jinuma: Japanese Dictionary · Word lists