in·​valu·​able | \ (ˌ)in-ˈval-yə-bəl How to pronounce invaluable (audio) , -yə-wə-bəl, -yü(-ə)-bəl \

Definition of invaluable

: valuable beyond estimation : priceless providing invaluable assistance

Other Words from invaluable

invaluableness noun
invaluably \ (ˌ)in-​ˈval-​yə-​blē How to pronounce invaluable (audio) , -​yə-​wə-​blē , -​yü(-​ə)-​blē \ adverb

Synonyms for invaluable


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invaluable = valuable?

Many people find it confusing that the in- prefix at the beginning of invaluable apparently lacks the meaning "not" found in a number of other words, such as invalid, inarticulate, and insane. In fact, the prefix does indicate negation, but in a way that is not immediately obvious. The original (and current) meaning of invaluable is "valuable beyond estimation"; the word describes something so precious that one cannot assign a price to it. This, clearly, is the opposite of the meaning "having no value; valueless" that the word might seem to carry. Invaluable actually has been recorded in the sense "without value," but such use has been exceedingly rare and is practically nonexistent today.

Examples of invaluable in a Sentence

Unfortunately, though, Sally does not respond to lithium, which has been invaluable for many patients with manic-depressive illness … — Oliver Sacks, New York Review of Books, 25 Sept. 2008 … the scrolls provide an invaluable snapshot of at least one important strain in early Judaism—though they are by no means a complete record of Jewish belief at that time. — Jeremy Lott, Lingua Franca, February 2001 I stayed there only a month or so but it was an invaluable experience …  : that month's residence provided the inspiration for a novel I wrote much later, Sophie's Choice. — William Styron, This Quiet Dust and Other Writings, (1953) 1982 Their help has been invaluable to us. the list of likely donors proved to be invaluable to our fund-raising efforts
Recent Examples on the Web This week’s leak, though criticized by the court, has been invaluable to the public officials and members of the public who have already begun mobilizing for a post-Roe vs. Wade future. Matt Pearcestaff Writer, Los Angeles Times, 4 May 2022 The Discogs site has become invaluable to collectors as a database for releases and their many vinyl and CD variants, as well as a place to buy and sell. Chris Willman, Variety, 3 May 2022 Partnerships like these are invaluable to implementing large and comprehensive programs in any industry. Pooja Pathak, Forbes, 15 Apr. 2022 Their knowledge and experience across film, television, games, technology and business, combined with that of our existing governors, will be invaluable to the BFI and the industry as a whole. Alex Ritman, The Hollywood Reporter, 8 Apr. 2022 Peacock was invaluable to the 2017 Astros, going 13-2 with a 3.00 ERA in 34 appearances, including 21 starts, during the regular season. Matt Young, Chron, 24 Mar. 2022 An extra day off can be invaluable to women, since the burdens of caregiving and housework still fall disproportionately on them, threatening their ability to succeed at the same rates as men, and putting them at a higher risk of burnout. Lila Maclellan, Quartz, 1 Mar. 2022 His new influence in global capitals and capacity to mobilize political heat on foreign leaders could be invaluable to the Ukrainian cause, which is why an eventual flight from Kyiv might be essential for his country’s hopes of liberation. Stephen Collinson, CNN, 28 Feb. 2022 Finishing the game with 14 points, Gatewood's ability to collapse Bullitt East's defense was invaluable to J-Town runs throughout the game. J.l. Kirven, The Courier-Journal, 25 Feb. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'invaluable.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of invaluable

1576, in the meaning defined above

History and Etymology for invaluable

in- entry 1 + value, verb + -able

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Time Traveler for invaluable

Time Traveler

The first known use of invaluable was in 1576

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Last Updated

10 May 2022

Cite this Entry

“Invaluable.” Dictionary, Merriam-Webster, Accessed 16 May. 2022.

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More Definitions for invaluable


in·​valu·​able | \ in-ˈval-yə-wə-bəl How to pronounce invaluable (audio) \

Kids Definition of invaluable

: priceless … his advice and counsel will prove invaluable in dealing with such problems as might arise.— Robert Lawson, Rabbit Hill

More from Merriam-Webster on invaluable

Nglish: Translation of invaluable for Spanish Speakers

Britannica English: Translation of invaluable for Arabic Speakers


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