undeclared
adjective
un·de·clared
ˌən-di-ˈklerd 
: 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
Insurers are generally the ones who make the final determination as to whether something like an undeclared act of war or civil unrest has occurred, French said.
—
Greg Iacurci, CNBC, 10 Jan. 2026
Five types of hummus have been recalled due to an undeclared allergen, the Food and Drug Administration (FDA) announced Wednesday.
—Health Editorial Team, Health, 7 Jan. 2026
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
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Cite this Entry
“Undeclared.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undeclared. Accessed 20 Jan. 2026.
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