The Collaborative International Dictionary
Irresoluble
Irresoluble \Ir*res"o*lu*ble\, a. [L. irresolubilis: cf. F. irr['e]soluble. See Resoluble, and cf. Irresolvable.]
Incapable of being dissolved or resolved into parts; insoluble.
--Boyle.-
Incapable of being relieved or assisted. [Obs.]
The second is in the irresoluble condition of our souls after a known sin committed.
--Bp. Hall.
Wiktionary
irresoluble
a. difficult if not impossible to resolve; irresolvable
Usage examples of "irresoluble".
Por lo demás, el problema central es irresoluble: la enumeración, siquiera parcial, de un conjunto infinito.