iˈrreferable,a.rare. [ir-2.] Not referable; that cannot be referred (to something). 1810Coleridge Rem. (1836) III. 312 Pure action, that is, the will, is a ‘noumenon’, and irreferable to time.1827Faraday Chem.Manip. ii. 38 Irreferable either to the weights or each other.