The Collaborative International Dictionary
Refragable
Refragable \Ref"ra*ga*ble\ (r?f"r?*g?*b'l), a. [LL. refragabilis, fr. L. refragari to oppose.] Capable of being refuted; refutable. [R.] -- Ref"ra*ga*ble*ness, n. [R.] -- Ref`ra*ga*bil"i*ty (-b?l`?*t?), n. [R.]
Wiktionary
refragable
a. Capable of being refuted; refutable.