Entry 2 senses · 2 variants Webster, 1913 Impregnant · Im·preg·nant · IPA /ɪmˈpɹɛɡnənt/ n. a. 01 n. That which impregnates. 1. That which impregnates.[R.] 02 a. Not pregnant; unfertilized or infertile. 1. Not pregnant; unfertilized or infertile.[R.]