'Inhuman' definitions:

Definition of 'inhuman'

(from WordNet)
adjective
Without compunction or human feeling; "in cold blood"; "cold-blooded killing"; "insensate destruction" [syn: cold, cold-blooded, inhuman, insensate]
adjective
Belonging to or resembling something nonhuman; "something dark and inhuman in form"; "a babel of inhuman noises"

Definition of 'Inhuman'

From: GCIDE
  • Inhuman \In*hu"man\, a. [L. inhumanus: cf. F. inhumain. See In- not, and Human.] [1913 Webster]
  • 1. Destitute of the kindness and tenderness that belong to a human being; cruel; barbarous; savage; unfeeling; as, an inhuman person or people. [1913 Webster]
  • 2. Characterized by, or attended with, cruelty; as, an inhuman act or punishment.
  • Syn: Cruel; unfeeling; pitiless; merciless; savage; barbarous; brutal; ferocious; ruthless; fiendish. [1913 Webster]