Wiktionary
infrahuman
n. (context psychology English) A creature that is not (yet) at the level of understanding of a human being, such as a presymbolic child or an animal.
WordNet
infrahuman
adj. belonging to a group below humans in evolutionary development; "infrahuman animals"
Usage examples of "infrahuman".
The romantics of every period have been excited by those scenes of violation, in which the natural and infrahuman assaults the white form of woman, and they have depicted Leda and the swan, Pasiphae and the bull, Antiope and the goat.