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

• 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

British audiences have an insatiable appetite for reality television. —Scott Bryan, Variety, 17 Aug. 2025

Despite having no real medical benefit to anyone, they are hunted and killed at extraordinary rates and illegally trafficked by the millions to meet an insatiable demand for their meat and scales. —Michael Adkesson, Chicago Tribune, 16 Aug. 2025

He’s just starred as the vast, insatiable villain Galactus opposite Pedro Pascal and Vanessa Kirby in Marvel’s The Fantastic Four: First Steps, currently sitting atop $230 million at the global box office. —Lily Ford, HollywoodReporter, 14 Aug. 2025

Due to their vast scale of computational power, cooling systems and other operations, large data centers have an insatiable demand for energy — especially as artificial intelligence proliferates. —Connor Giffin, The Courier-Journal, 30 July 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