Source : Webster's Revised Unabridged Dictionary (1913)

Indocible \In*doc"i*ble\, a. [L. indocibilis. See {In-} not, and
   {Docible}.]
   Incapable of being taught, or not easily instructed; dull in
   intellect; intractable; unteachable; indocile. --Bp. Hall. --
   {In*doc"i*ble*ness}, n.