invaluable /in-valˈū(-ə)-bl/

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

invalˈuableness noun

• apprenticed
• apprenticehood
• apprenticehoods
• apprenticement
• apprenticements
• apprentices
• apprenticeship
• apprenticeships
• apprenticing
• appress
• appressed
• appresses
• appressing
• appressoria
• appressorium
• apprise
• apprised
• appriser
• anthocarpous
• anthocarps
• anthochlore
• anthochlores
• anthocyan
• anthocyanin
• anthocyanins