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

• rivet hearths
• rivet hole
• rivet holes
• riveting
• rivetingly
• rivetings
• rivets
• rivetted
• rivetting
• riviera
• rivieras
• riving
• rivière
• rivières
• rivlin
• rivlins
• rivo
• rivulet
• rivulets
• rix-dollar
• rix-dollars
• riyal
• riyals
• riz
• riza