insatiable

adjective

in·​sa·​tia·​ble (ˌ)in-ˈsā-shə-bəl 

: incapable of being satisfied : quenchless

had an insatiable desire for wealth

insatiability

(ˌ)in-ˌsā-shə-ˈbi-lə-tē 

noun

insatiableness

(ˌ)in-ˈsā-shə-bəl-nəs 

noun

insatiably

(ˌ)in-ˈsā-shə-blē 

adverb

Synonyms of insatiable

• unquenchable
• urgent
• avid
• insatiate

Examples of insatiable in a Sentence

Her desire for knowledge was insatiable.

an insatiable need for the approval of others

Recent Examples on the Web

The explosion of generative AI—and its insatiable demand for computing power—has transformed modest server farms into sprawling mega-complexes that can stretch across hundreds of acres, draw as much electricity as a midsize city, and guzzle millions of gallons of water. —Sharon Goldman, Fortune, 5 Nov. 2025

Guided by hope, intuition and a longing for truth, don’t shy away from the insatiable desire to live life on your own terms. —Valerie Mesa, PEOPLE, 4 Nov. 2025

Most people attribute it to the nation’s growing, seemingly insatiable, demand for more energy. —Sophie Hartley, IndyStar, 4 Nov. 2025

Fred Hicks, assistant vice president and chief information officer at Adelphi University, said the companies are adding the extra charges to help pay for multi-billion-dollar data centers and their insatiable appetite for energy. —Kevin Williams, CNBC, 31 Oct. 2025

Word History

Etymology

Middle English insaciable, from Anglo-French, from Latin insatiabilis, from in- + satiare to satisfy — more at satiate

First Known Use

15th century, in the meaning defined above

Kids Definition

insatiable

adjective

in·​sa·​tia·​ble (ˈ)in-ˈsā-shə-bəl 

: impossible to satisfy

insatiable thirst

an insatiable desire for knowledge

insatiably

-blē 

adverb