Inhuman
WordNet
adjective
(1) Belonging to or resembling something nonhuman
"Something dark and inhuman in form"
"A babel of inhuman noises"
(2) Without compunction or human feeling
"In cold blood"
"Cold-blooded killing"
"Insensate destruction"
WiktionaryText
Adjective
- Of or pertaining to inhumanity and the indifferently cruel, sadistic or barbaric behavior it brings.