INDEFENSIBLE n.
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.
INDEFINITE a. 4 definitions
t; not determined or fixed upon; not precise; uncertain; vague; confused; obscure; as, an indefinite time, plan, etc. It were to be wished that . . . men would leave off that indefinite way of vouching, "the chymists say this," or "the chymists affirm that." Boyle. The time of this last is left indefinite. Dryden.…