Main Entry: in·sol·u·ble

Pronunciation: \(ˌ)in-ˈsäl-yə-bəl\

Function: adjective

Etymology: Middle English insolible, from Latin insolubilis, from in- + solvere to free, dissolve — more at solve

Date: 14th century

: not soluble: as a archaic : indissoluble b : having or admitting of no solution or explanation <an insoluble problem> c : incapable of being dissolved in a liquid and especially water; also : soluble only with difficulty or to a slight degree

— in·sol·u·bil·i·ty \-ˌsäl-yə-ˈbi-lə-tē\ noun

— insoluble noun

— in·sol·u·ble·ness \-ˈsäl-yə-bəl-nəs\ noun

— in·sol·u·bly \-blē\ adverb