undeclared

adjective

un·​de·​clared ˌən-di-ˈklerd How to pronounce undeclared (audio)
Synonyms of undeclarednext
: not announced or openly acknowledged : not stated or decided in an official way : not declared
an undeclared war
an undeclared presidential candidate
a student with an undeclared major

Examples of undeclared in a Sentence

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.
Iran had built out nearly every part of its nuclear weapons program in plain sight, with the weaponization work moving forward at undeclared sites controlled by SPND. Beth Bailey, FOXNews.com, 6 Mar. 2026 Bottles labeled as Honey BBQ Sauce-Mustard were accidentally filled with Honey BBQ Sauce-Sweet, resulting in the addition of undeclared wheat and soy. Jenna Anderson, Health, 4 Mar. 2026 Savannah Bee Company is recalling a select lot of its Honey BBQ Sauce after some bottles were found to contain undeclared wheat and soy allergens. Michele Laufik, Martha Stewart, 4 Mar. 2026 Recalled for undeclared prescription drug Tadalafil. Josh Kelly, Oklahoman, 27 Feb. 2026 See All Example Sentences for undeclared

Word History

First Known Use

1526, in the meaning defined above

Time Traveler
The first known use of undeclared was in 1526

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Cite this Entry

“Undeclared.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undeclared. Accessed 17 Mar. 2026.

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