invaluable

[in-val-yoo-uh-buhl]

adjective

1. beyond calculable or appraisable value; of inestimable worth; priceless.

   an invaluable art collection; her invaluable assistance.

   Synonyms: precious
   Antonyms: worthless

invaluable

/ ɪnˈvæljʊəbəl /

adjective

1. having great value that is impossible to calculate; priceless

Other Word Forms

• invaluableness noun
• invaluably adverb

Word History and Origins

Origin of invaluable¹

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

Example Sentences

Unlike land sites, where the invaluable evidence of past cultures and people are often covered over or mingled with the relics of succeeding eras, an ancient shipwreck is a pristine historic time capsule.

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Bonta said his office “has supported the Cassirers’ quest for justice for two decades,” and “will continue to fight with them for the rightful return of this invaluable family heirloom.”

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“A forensic accountant is invaluable in helping with this process by utilizing various accounting and investigative techniques.”

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Jane Richardson, chief executive of Amgueddfa Cymru, described the stolen items as "invaluable and irreplaceable items that are part of Wales' history, heritage, and culture".

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Opera’s invaluable source for progressive and unexpected new work, tends to go in for blatant amplification.

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Related Words

• helpful 
• valuable