残ざん忍にん酷こく薄はくMeanings1na-adjective, nouncruel; heartless; brutal; atrociousyojijukugo (four-character idiom)›A yojijukugo describing a person or act as extremely cruel and merciless. Often used in literary or emphatic contexts.彼かれの残ざん忍にん酷こく薄はくな仕し打うちに、誰だれもが言こと葉ばを失うしなった。Everyone was speechless at his cruel and heartless treatment.