Ref'ra·ga·ble adjective [ Late Latin refragabilis , from Latin refragari to oppose.] Capable of being refuted; refutable. [ R.] -- Ref'ra*ga*ble*ness , noun [ R.] -- Ref`ra*ga*bil'i*ty (-b...l`...*t...) noun [ R.] Found on http://www.encyclo.co.uk/webster/R/37