Entry 1 sense Webster, 1913 Adnominal /ăd′-nŏ′-mĭ-nəl/ · Ad·nom·i·nal · IPA /ˌædˈnɑ.mɪ.nəl/ 01 a. Pertaining to an adnoun; adjectival; attached to a noun. 1. Pertaining to an adnoun; adjectival; attached to a noun.(Gram.)