irresoluble /ir-ezˈə-lū-bl or -lŭ-bl/

1. That cannot be resolved into parts
2. That cannot be solved
3. That cannot be got rid of (archaic)

irresolubilˈity noun

• saviour sibling
• saviour siblings
• Savoie
• savoir-faire
• savoir-vivre
• savor
• savored
• savories
• savoring
• savorous
• savors
• savory
• savour
• savoured
• savouries
• savourily
• savouriness
• savourinesses
• savouring
• savourless
• savourly
• savours
• savoury
• Savoy
• Savoyard