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.
The issues include contamination risks, undeclared allergens, and potential bacterial exposure—all of which can pose health concerns. Jenna Anderson, Health, 16 Dec. 2025 White Castle Frozen Food Division recalled its four-count cartons of sliders due to an undeclared ingredient, according to an announcement posted to the FDA's website. Julia Gomez, USA Today, 15 Dec. 2025 Food recalls for undeclared allergens are a leading cause of food safety alerts in the United States, as even traces of allergens can trigger adverse health outcomes. Associate News Editor, MSNBC Newsweek, 11 Dec. 2025 Officials found in his cargo undeclared endangered species: two cockatoos, eight Amazon parrots, a capuchin monkey, and two small marmosets. Rene Ebersole, Rolling Stone, 18 Nov. 2025 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 25 Dec. 2025.

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