un·​as·​sail·​able ˌən-ə-ˈsā-lə-bəl How to pronounce unassailable (audio)
: not assailable : not liable to doubt, attack, or question
an unassailable argument
an unassailable alibi
unassailability noun
unassailableness noun
unassailably adverb

Examples of unassailable in a Sentence

one of the unassailable beliefs of that political party
Recent Examples on the Web They are based on the unassailable fact that the S&P 500 has risen more than 20 percent from its last bottom, which occurred on Oct. 12. Jeff Sommer, New York Times, 16 June 2023 Now, the commission’s work isn’t unassailable, and our own Andy McCarthy has long written about how the government has shamelessly hidden the ball on the level of Saudi involvement in the attack. The Editors, National Review, 23 Aug. 2023 By then, Hoover was the most unassailable figure in American public life, a true untouchable, beyond criticism, genuflected to by Republican and Democratic politicians alike. Thomas Doherty, The Hollywood Reporter, 7 July 2023 Related The highest-selling PC game ever at the time, Diablo II would help cement the legacy of the series as both highly influential and unassailable — at least, for those first two games. Christopher Cruz, Rolling Stone, 26 May 2023 Hygiene habits are embedded very early on in life, and changing those habits – especially in a way that is rational, evidence-based, unassailable, scalable and apolitical – is complex. David Hessekiel, Forbes, 4 May 2023 Taylor Fritz gave the U.S. an unassailable 3-0 lead in the best-of-five matchup when edging former Wimbledon finalist Matteo Berrettini 7-6 (4), 7-6 (7). BostonGlobe.com, 8 Jan. 2023 Failing to fight for an unassailable future constitutes damage of our own making. Bryce Millercolumnist, San Diego Union-Tribune, 3 Dec. 2022 The case had been viewed as a test of the FTC’s future-rivals theory, in which the agency accused Meta of trying to establish an unassailable empire in the still-nascent VR industry. Brian Fung, CNN, 19 July 2023 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'unassailable.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1596, in the meaning defined above

Time Traveler
The first known use of unassailable was in 1596

Dictionary Entries Near unassailable

Cite this Entry

“Unassailable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unassailable. Accessed 24 Sep. 2023.

Kids Definition


un·​as·​sail·​able ˌən-ə-ˈsā-lə-bəl How to pronounce unassailable (audio)
: not assailable : not open to doubt, attack, or question
unassailably adverb

More from Merriam-Webster on unassailable

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