Source : Webster's Revised Unabridged Dictionary (1913)

Explicable \Ex"pli*ca*ble\, a. [L. explicabilis: cf. F.
   explicable.]
   Capable of being explicated; that may be explained or
   accounted for; admitting explanation.

         It is not explicable upon any grounds.   --Burke.

Source : WordNet®

explicable
     adj : capable of being explicated or accounted for; "explicable
           behavior" [ant: {inexplicable}]