[adj] devoid of feeling and consciousness and animation; "insentient (or insensate) stone" [adj] without compunction or human feeling; "in cold blood"; "cold-blooded killing"; "insensate destruction"
cold, cold-blooded, inhuman, inhumane, insentient, unfeeling
animate, sentient
abiotic, anarchic, anesthetic, angry, asleep, azoic, benumbed, bloodless, blustering, blusterous, blustery, brainless, callous, chaotic, dead, deadened, dull, dumb, exanimate, fatuous, foolish, frantic, frenzied, furious, hard, headless, hellish, ignorant