nonhuman

adj

1. inhumane, inhumanistic, bloodless, cold-blooded, cold-hearted, hard-hearted, stonyhearted, marble-hearted, heartless, unfeeling, unsympathetic, uncompassionate; androidal, automatous, mechanical, machinelike, robotistic, robotlike; unnatural, abnormal, foreign, alien, strange, not our kind; not of this world, otherworldly, unearthly, extraterrestrial, from outer space, moon, Martian.

2. inhuman, animalistic, animalian, zooid, zooidal; wolfish, lupine, feral, ferine, bestial, beastly; brutal, brutish, mean, harsh, cruel, sadistic; savage, barbarous, barbaric, bloodthirsty, cannibalistic, wild, fierce, ferocious, vicious, fell, truculent, Tartarean, Hunnish, Vandalic.