inhumanness

disposition to willfully inflict pain and suffering on others the unspeakable inhumanness of the pseudoscientific experiments performed on inmates of the concentration camps Synonyms atrociousness, atrocity, barbarity, barbarousness, brutality, cruelness, fiendishness, heartlessness, inhumanity, cruelty, sadism, savageness, savagery, truculence, viciousness, wantonnessRelated Words hard-heartedness, mercilessness, pitilessness, ruthlessness, unfeelingness; fellness, ferociousness, ferocity, fierceness, grimness; bloodlust, bloodthirstiness, murderousness, sanguineness, sanguinity; cattiness, despitefulness, hatefulness, malevolence, maliciousness, malignity, meanness, nastiness, spitefulness; hardhandedness, harshness, heavy-handedness, oppressivenessNear Antonyms tenderness, warmheartedness, warmness, warmth; charitableness, clemency, leniency, mercifulness, mercy, pityAntonyms benignity, compassion, good-heartedness, humaneness, humanity, kindheartedness, kindness, sympathy, tenderheartedness