unassailable

adjective

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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Kerr—an absolute wall of a man, and thus a role befitting of Johnson—becamerenowned for his unassailable winning streak throughout the late ’90s and early aughts. David Sims, The Atlantic, 9 Oct. 2025 Or adopt my unassailable 1816 Compromise, which would require players to have rest weekends. Matt Barrows, New York Times, 1 Oct. 2025 And the new hotel was erected by an unassailable entity: the commercial arm of the Revolutionary Armed Forces, known as GAESA, which controls the nation’s construction, tourism, finance, and import-export industries. Jon Lee Anderson, New Yorker, 29 Sep. 2025 This would move us from probabilistic trust to mathematical certainty, transforming cryptographic assurance into a provable, unassailable fact. Pravir Malik, Forbes.com, 19 Sep. 2025 See All Example Sentences for unassailable

Word History

First Known Use

1596, in the meaning defined above

Time Traveler
The first known use of unassailable was in 1596

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Cite this Entry

“Unassailable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unassailable. Accessed 18 Oct. 2025.

Kids Definition

unassailable

adjective
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

Last Updated: - Updated example sentences
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