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 global demand for exclusive merch is currently insatiable. —Kian Bakhtiari, Forbes.com, 20 Jan. 2026

The plans are the result of an insatiable energy appetite fast outpacing the state’s capacity. —Sarah Henry, AZCentral.com, 18 Jan. 2026

The outlook for Russia’s economy would be rosy, unburdened by sanctions and lost human capital, and made rich by Europe’s once-insatiable demand for its oil and gas. —Marc Champion, Twin Cities, 15 Jan. 2026

Feeding black holes also usually emit copious ultraviolet radiation from the white-hot disks of material that pile up around their insatiable maws. —Lee Billings, Scientific American, 14 Jan. 2026

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