unmated

From un- +‎ mated.

unmated (not comparable)

1. Not mated.
   • 1603, Michel de Montaigne, chapter 44, in John Florio, transl., The Essayes […], book I, London: […] Val[entine] Simmes for Edward Blount […], →OCLC:

     And Cato strengthened with his only constancie, and with an unmated resolve […].

unmated

1. simple past and past participle of unmate

• untamed