adnominal /ˌædˈnɑ.mɪ.nəl/adjective 2noun 1forms 1 adjective2 •Involving or relating to words that modify a noun.In most languages, pronominal and adnominal demonstratives are morphologically identical. — 2005 •(old-fashioned) Of or pertaining to an adnoun (sensu stricto). noun1 •The adnominal case: A word or phrase qualifying a noun, such as an adjective or a relative clause. formsadnominals