a. [ L. inhumanus: cf. F. inhumain. See In- not, and Human. ] [ 1913 Webster ]
adj. not humane; lacking and reflecting lack of pity, kindness, or compassion;
adv. In an inhumane manner. [ PJC ]
n. the quality of lacking compassion or consideration for others; the quality of being inhumane; inhumanity; -- of people or events.
n.;
Man's inhumanity to man
Makes countless thousands mourn. Burns. [ 1913 Webster ]
adv. In an inhuman manner; cruelly; barbarously. [ 1913 Webster ]