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

irresˈolubly adverb

• sisterless
• sisterlike
• sisterliness
• sisterlinesses
• sisterly
• sisters
• sisters-in-law
• sisters of mercy
• Sistine
• Sistine Chapel
• sisting
• sistra
• sistrum
• sists
• Sisyphean
• sit
• sitar
• sitars
• sitatunga
• sitatungas
• sit back
• sit bodkin
• rodent
• Rodentia
• rodenticidal