We see, too, that the disaster of which the world actually stood in imminent deadly peril has been averted, and that if every pound of saltpetre in the mines of Chili were suddenly to dissolve into its elements, the human race would still be able to guard itself against the unhumanity of nature.
Source: wiktionary
This one's unhumanity was mostly concealed by his hotsuit, until he moved legs that were hinged the wrong way -- birdlike.
Source: wiktionary
No mansmell of smoke or byre or farmstead tainted it, blowing clear across miles beyond miles of wastelands. Smith's nostrils quivered to that scent of unhumanity.
Source: wiktionary
Instead of conflict there is murder and massacre — relics of brute savagery and man's unhumanity.
Source: wiktionary
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