inhuman

adjectives

without compunction or human feeling
"in cold blood"; "cold-blooded killing"; "insensate destruction"
cold, cold-blooded, inhuman, insensate
is derived from
inhumanity
belonging to or resembling something nonhuman
"something dark and inhuman in form"; "a babel of inhuman noises"
inhuman
is similar to
not human; not belonging to or produced by or appropriate to human beings
"nonhuman primates such as chimpanzees"
nonhuman