immeasurable

adjective

im·​mea·​sur·​able (ˌ)i(m)-ˈme-zhə-rə-bəl 

-ˈmā-zhə-, 

-zhər-bəl;

-ˈmezh-rə-, 

-ˈmāzh-

: incapable of being measured

Their new grandchild brought them immeasurable joy.

broadly : indefinitely extensive

immeasurableness noun

immeasurably

(ˌ)i(m)-ˈme-zhə-rə-blē 

-ˈmā-zhə-, 

-zhər-blē;

-ˈmezh-rə-, 

-ˈmāzh-

adverb

Synonyms of immeasurable

• infinite
• endless

Examples of immeasurable in a Sentence

The war has caused immeasurable damage.

The new medicine has brought about an immeasurable improvement in her life.

Recent Examples on the Web

The High Line Canal Trail Conservancy says his impact has been immeasurable. —Michael Abeyta, CBS News, 29 Mar. 2026

The loss of Warners will be immeasurable. —Chris O'Falt, IndieWire, 24 Mar. 2026

Managed by former Yankee favorite backup catcher Francisco Cervelli, the Cinderella run by Team Italy was the talk of the tournament and had an immeasurable impact for baseball back in Italy. —Bill Madden, New York Daily News, 21 Mar. 2026

His influence on everyday runners is immeasurable. —Nicole Bennett, AJC.com, 20 Mar. 2026

Word History

First Known Use

14th century, in the meaning defined above

Rhymes for immeasurable

• babble
• babel
• dabble
• drabble
• gabble
• nabal
• rabble
• scrabble

Kids Definition

immeasurable

adjective

im·​mea·​sur·​able (ˌ)im-ˈ(m)ezh-(ə-)rə-bəl 

-ˈ(m)ezh-ər-bəl, 

-ˈ(m)āzh-

: impossible to measure : vast, boundless

immeasurably

-blē 

adverb