conceivability|kənsiːvəˈbɪlɪtɪ| [f. next + -ity.] Quality or condition of being conceivable. 1825Coleridge Aids Refl. 97 The idea of the former is necessary to the conceivability of the latter.1859E. Darwin in D.'s Life & Lett. (1887) II. 234 Beyond all probability or conceivability.