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

An out-of-the box initiative such as this by the mayor likely will bring immeasurable and immediate benefits. —Vijay Dandapani, New York Daily News, 8 Jan. 2026

Incorporating gorgeous long takes and occasionally extended running times — his magnum opus Sátántangó ran more than seven hours — Tarr depicted the human condition as one of intense suffering, but also one filled with immeasurable bleak beauty. —Tim Grierson, Rolling Stone, 6 Jan. 2026

Her energy, compassion, and independence touched everyone who knew her, and her absence leaves an immeasurable void in our lives. —Jesse Sarles, CBS News, 5 Jan. 2026

Of course, the other side of the argument is that AI could put immeasurable power in the hands of the few. —Chris Young, Interesting Engineering, 1 Jan. 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