\In*ves"ti*ga*ble\, a. [L. investigabilis. See
{Investigate}.]
Capable or susceptible of being investigated; admitting
research. --Hooker.

\In*ves"ti*ga*ble\, a. [L. investigabilis. See
{In-} not, and {Vestigate}.]
Unsearchable; inscrutable. [Obs.]

      So unsearchable the judgment and so investigable the
      ways thereof.                            --Bale.