Noun
The quality or state of being insoluble or not dissolvable, as in a fluid.
The quality of being inexplicable or insolvable.
Source: Webster's dictionaryWhether or not there exists a solution to problems troubles only a minority; that the emotions have no outcome, lead to nothing, vanish into themselves - that is the great unconscious drama, the affective insolubility everyone suffers without even thinking about it. Emil Cioran
The proper method of philosophy consists in clearly conceiving the insoluble problems in all their insolubility and then in simply contemplating them, fixedly and tirelessly, year after year, without any hope, patiently waiting. Simone Weil