invaluable /in-valˈū(-ə)-bl/

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

invalˈuableness noun

• rift
• rifte
• rifted
• riftier
• riftiest
• rifting
• riftless
• rifts
• rift valley
• Rift Valley fever
• rift valleys
• rifty
• rig
• rigadoon
• rigadoons
• rigatoni
• rigatonis
• Rigel
• rigg
• riggald
• -rigged
• rigged
• rigger
• riggers
• rigging