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)

• prototypical
• prototyping
• protoxide
• protoxides
• protoxylem
• protoxylems
• protozoa
• Protozoa
• protozoal
• protozoan
• protozoans
• protozoic
• protozoological
• protozoologies
• protozoologist
• protozoologists
• protozoology
• protozoon
• protract
• protracted
• protractedly
• protractible
• protractile
• protracting
• protraction