Insolvable
Pronunciation : In*solv"a*ble
Part of Speech : a.
Definition : 1. Not solvable; insoluble; admitting no solution or explanation; as, an insolvable problem or difficulty. I. Watts.
2. Incapable of being paid or discharged, as debts.
3. Not capable of being loosed or disentangled; inextricable. "Bands insolvable." Pope.
Source : Webster's Unabridged Dictionary, 1913