Indefensible
Pronunciation : In`de*fen"si*ble
Etymology : [Pref. in- not + defensible: cf. OF. indefensible, indefensable.]
Definition : Defn: Not defensible; not capable of being defended, maintained, vindicated, or justified; unjustifiable; untenable; as, an indefensible fortress, position, cause, etc. Men find that something can be said in favor of what, on the very proposal, they thought utterly indefensible. Burke.
Source : Webster's Unabridged Dictionary, 1913