noun, na-adjective
inhumanity; atrocity; cruel and outrageous
Strong literary or formal term for acts or character that are both cruel and beyond moral bounds. Often used in serious condemnation.
その独裁者の残虐非道な行為は歴史に刻まれている。
The dictator's atrocious acts are etched in history.
戦争の残虐非道を伝える記録が展示されている。
Records conveying the inhumanity of war are on display.
Compound of 残虐 (cruelty, atrocity) and 非道 (injustice, wickedness). The combination emphasizes extreme cruelty that violates moral principles.