innominate UK /ɪˈnɒmɪnət/US /ɪˈnɑmɪnət/noun 4adjective 1forms 3 noun4 •An innominate bone. •An innominate artery. •An innominate vein. •Innominate substance. adjective1 •Having no name, nameless, unnamed; anonymous.Counsel for the Defence objected to the libel, on the grounds that the offence was innominate. — 1950 formsinnominates · more innominate · most innominate