unassailable

adjective

un·​as·​sail·​able ˌən-ə-ˈsā-lə-bəl How to pronounce unassailable (audio)
Synonyms of unassailablenext
: 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.
In recent weeks, both Manchester City and Aston Villa have faltered, allowing the Gunners to build an unassailable double-digit lead at the top. Zak Garner-Purkis, Forbes.com, 26 Jan. 2026 In New Orleans, where Watson crafted a 31-point performance on Tuesday, his latest in an increasingly unassailable month. Bennett Durando, Denver Post, 14 Jan. 2026 Arena workers spent more than an hour attempting to mop condensation off the court, an ultimately fruitless endeavor due to the unassailable humidity inside the stadium. Julia Poe, Chicago Tribune, 9 Jan. 2026 Paramount insists its offer is higher, has a better chance of passing regulators and that financing, backed by the Ellison Family Trust, is unassailable, calling it absurd to think otherwise. Jill Goldsmith, Deadline, 17 Dec. 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

Browse Nearby Words

Cite this Entry

“Unassailable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unassailable. Accessed 28 Jan. 2026.

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
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!