"insoluble" in German insoluble unlösbar Detailed translations for "insoluble" insoluble 1. mathematics insoluble(also: unsolvable) unlösbar{adjectiv} - It's insoluble for man or machine. Source: opensubtitles.org Corpus by OPUS Request review - Sie ist unlösbar - Für Mensch und Maschine. 2. formal insoluble(also: unsolvable, insolvable, unresolvable, irresolvable) unlösbar{adjectiv} English synonyms for "insoluble" insoluble {a} indissoluble