unnature

un- +‎ nature

unnature (third-person singular simple present unnatures, present participle unnaturing, simple past and past participle unnatured)

1. (obsolete, transitive) To change the nature of; to invest with a different or contrary nature.

   A right heavenly nature, indeed, as if were unnaturing them, doth so bridle them [the elements]. — Sir P. Sidney.

unnature (uncountable)

1. That which is contrary to nature; the unnatural.

   So as to be rather unnature, after all, than nature. — H. Bushnell.