资料来源 : Webster's Revised Unabridged Dictionary (1913)

Unsearchable \Un*search"a*ble\, a.
   Not searchable; inscrutable; hidden; mysterious.

         The counsels of God are to us unsearchable. --Rogers.
   -- {Un*search"a*ble*ness}, n. -- {Un*search"a*bly}, adv.