also: サディスチック · サジスティック
na-adjective
Describes a person, behavior, or tendency that derives pleasure from causing others pain or humiliation. Used as a na-adjective.
彼の冗談は少しサディスティックだ。
His jokes are a little sadistic.
サディスティックな笑みを浮かべた。
He gave a sadistic smile.
Borrowed from English 'sadistic', ultimately derived from the Marquis de Sade.