inestimable

adjective

in·​es·​ti·​ma·​ble (ˌ)i-ˈne-stə-mə-bəl 

1

: incapable of being estimated or computed

storms caused inestimable damage

2

: too valuable or excellent to be measured or appreciated

has performed an inestimable service for his country

inestimably

(ˌ)i-ˈne-stə-mə-blē 

adverb

Synonyms

• invaluable

Examples of inestimable in a Sentence

He has made inestimable contributions to our society.

Einstein's inestimable contributions to science.

Recent Examples on the Web

But Madrid still possess players whose names alone carry the clout of heavyweight champions: the inestimable Zinedine Zidane, the Brazilian fenomeno Ronaldo, Roberto Carlos, David Beckham, Raul. —Amy Lawrence, New York Times, 8 Apr. 2025

Its decision will have inestimable consequences for our Constitution and our society. —David Faris, Newsweek, 3 Feb. 2025

This film has been an uphill battle every step of the way and faced inestimable resistance on every front. —Gerrad Hall, EW.com, 23 Jan. 2025

By replacing a democracy with a dictatorship, the US did inestimable damage to the country and its own reputation in the world, especially in Central America. —Matthew Wills, JSTOR Daily, 29 Dec. 2024

Word History

Etymology

Middle English, from Middle French, from Latin inaestimabilis, from in- + aestimabilis estimable

First Known Use

14th century, in the meaning defined at sense 1

Rhymes for inestimable

• estimable

Kids Definition

inestimable

adjective

in·​es·​ti·​ma·​ble (ˈ)in-ˈes-tə-mə-bəl 

1

: impossible to estimate

did inestimable damage

2

: too valuable or excellent to be measured or appreciated

inestimably

-blē 

adverb