invaluable

[ in-val-yoo-uh-buhl ]
/ ɪnˈvæl yu ə bəl /

adjective

beyond calculable or appraisable value; of inestimable worth; priceless: an invaluable art collection; her invaluable assistance.

Origin of invaluable

1570–80; in-3 + valuable, in obsolete sense “capable of valuation”

OTHER WORDS FROM invaluable

in·val·u·a·ble·ness, nounin·val·u·a·bly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for invaluable

British Dictionary definitions for invaluable

invaluable
/ (ɪnˈvæljʊəbəl) /

adjective

having great value that is impossible to calculate; priceless

Derived forms of invaluable

invaluableness, nouninvaluably, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012