Incognizable
Pronunciation : In*cog"ni*za*ble
Part of Speech : a.
Definition : Defn: Not cognizable; incapable of being recognized, known, or distinguished. H. Spenser. The Lettish race, not a primitive stock of the Slavi, but a distinct branch, now become incognizable. Tooke.
Source : Webster's Unabridged Dictionary, 1913