The Collaborative International Dictionary
Unbegotten
Unbegot \Un`be*got"\, Unbegotten \Un`be*got"ten\, a. [Pref. un- not + begot, begotten.] Not begot; not yet generated; also, having never been generated; self-existent; eternal.
Douglas Harper's Etymology Dictionary
Wiktionary
unbegotten
a. Not begotten.
Usage examples of "unbegotten".
But only the love of both is neither begotten nor unbegotten, because it is neither son nor offspring, and yet does in some sort derive existence from another.