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insatiable

American  
[in-sey-shuh-buhl, -shee-uh-] / ɪnˈseɪ ʃə bəl, -ʃi ə- /

adjective

  1. not satiable; incapable of being satisfied or appeased.

    insatiable hunger for knowledge.

    Synonyms:
    bottomless, unquenchable, voracious

insatiable British  
/ ɪnˈseɪʃɪɪt, -ʃɪə-, ɪnˈseɪʃəbəl /

adjective

  1. not able to be satisfied or satiated; greedy or unappeasable

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of insatiable

First recorded in 1400–50; late Middle English insaciable, from Latin insatiābilis; equivalent to in- 3 + satiable

Explanation

If someone can't be satisfied, she is insatiable. After being lost in the woods eating only berries for a few days, you'll find your hunger is insatiable once you finally get to the table. Insatiable comes from the combination of the negative prefix, in- and the Latin verb satiare, for fill. Someone who is insatiable can never be full. It can be used for spiritual as well as physical desires. Swift's traveling Gulliver talks about his "insatiable desire of seeing foreign countries." Perhaps you have an insatiable desire to learn all the words in the English language. Synonyms are unappeasable and gluttonous.

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Vocabulary lists containing insatiable

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

For decades, her insatiable musical curiosity allowed her to surf the zeitgeist, often introducing new sounds to pop before they'd gone mainstream.

From BBC • Jul. 2, 2026

Their businesses have flourished in a compute-constrained environment with a seemingly insatiable demand for capacity.

From MarketWatch • Jul. 1, 2026

But their appetite for capital appears to be insatiable; Monday, only days after raising $85 billion in its IPO, SpaceX launched a $20-billion bond issue.

From Los Angeles Times • Jun. 23, 2026

He should really thank the business decisions of CEO Lip-Bu Tan—whom he had earlier called to resign—and insatiable demand for chips by AI hyperscalers.

From The Wall Street Journal • Jun. 5, 2026

Did he not go continually to the holy springs with an insatiable thirst, to the sacrifices, to books, to the Brahmins’ discourses?

From "Siddhartha" by Hermann Hesse

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