inhuman

adjective
1
not showing sympathy or kind feelings for people who are suffering; very cruel
غیرانسانی, بی‌رحم, وحشیانه, بیرحمانه, سخت‌دل, بی‌شفقت, ظالمانه
2
not human; not seeming to be produced by a human and therefore frightening
غیرانسانی, وحشیانه, بی‌رحمانه
There was a strange inhuman sound.