The Collaborative International Dictionary
Unnature \Un*na"ture\, n. [Pref. un- not + nature.] The contrary of nature; that which is unnatural. [R.]
So as to be rather unnature, after all, than nature.
--H. Bushnell.
Unnature \Un*na"ture\, v. t. [1st pref. un- + nature.] To change the nature of; to invest with a different or contrary nature. [Obs.]
A right heavenly nature, indeed, as if were unnaturing
them, doth so bridle them [the elements].
--Sir P.
Sidney.
Wiktionary
n. That which is contrary to nature; the unnatural. vb. (context obsolete transitive English) To change the nature of; to invest with a different or contrary nature.
Usage examples of "unnature".
If he wasn't dreading possible exposure as a DNA-resequenced freak of unnature, he was being uprooted and probably split from all his friends and colleagues and sent to some forsaken hellhole--possibly to serve as the doctor on a Rigelian penal colony, perhaps, or worse, as personal physician to some pompous, overstuffed admiral nearing retirement.