refutabilis

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.

rĕfūtābĭlĭs, e, adj. [refuto],

that may be rejected or refuted; hence, contemptible , Ambros. in Luc. 8, § 49; id. Spir. Sanct. 2, 8, § 80.