antihuman

anti- +‎ human

antihuman (comparative more antihuman, superlative most antihuman)

1. Opposed to humanity
   • 1991 April 26, Name withheld, “Our Abusive Critics”, in Chicago Reader‎:

     I would like this antihuman woman to know that she has played right into the hands of abusers everywhere by making this claim.

   • 1999 February 19, Fred Camper, “Form Follows Dysfunction”, in Chicago Reader‎:

     I've rarely seen a sculptural object express contradictions so well: they're both human and antihuman, squat and vertical (because of the drapery folds), heavy and light.

2. (immunology, not comparable) Describing an antibody that reacts with the immunoglobins found in humans.