invaluable /in-valˈū(-ə)-bl/

1. That cannot have a value set upon it
2. Priceless

invalˈuableness noun

• Long Barnaby
• longboard
• longboards
• longboat
• longboats
• longbow
• longbows
• long-breathed
• longcase clock
• longcase clocks
• long-chain
• longcloth
• long-clothes
• longcloths
• long-coats
• long corner
• long corners
• long-dated
• long-day plant
• long-day plants
• long-descended
• long-distance
• long division
• long divisions
• long dozen