unquenchable

adjective

un·​quench·​able ˌən-ˈkwen-chə-bəl 

: unable to be quenched

an unquenchable flame

especially : not capable of being satisfied, quelled, or discouraged

an unquenchable thirst/desire

unquenchable optimism

unquenchably

ˌən-ˈkwen-chə-blē 

adverb

Synonyms

• inappeasable
• inextinguishable
• insatiable
• insatiate
• quenchless
• unappeasable
• unslakable

Examples of unquenchable in a Sentence

from a very early age she displayed an unquenchable curiosity about the natural world

Recent Examples on the Web

All are also played by Banderas and all are equally afflicted with gold fever, an unquenchable desire to find El Dorado and the golden treasures the Incas were rumored to have left behind somewhere in the region. —Leslie Felperin, The Hollywood Reporter, 4 Nov. 2024

The date may change, but the music biz’s unquenchable thirst for cute, non-threatening boys remains the same. —Bethy Squires, Vulture, 6 Oct. 2024

The city should convert these unquenchable plants back to native cacti, succulent and chaparral species. —Jonathan Horwitz, Orange County Register, 4 Oct. 2024

Under the emotional surface of every successful entrepreneur is an unquenchable drive, zeal, and yearning. —Chip Bell, Forbes, 15 Sep. 2024

Word History

First Known Use

14th century, in the meaning defined above