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
Gina Marie Bakery, based in Waterbury, announced the voluntary recall on September 10 over the potential undeclared presence of almonds, sesame and several food colorings—namely Red 40, Red 3, Blue 1, Yellow 5 and Yellow 6.
—
Matthew Robinson, MSNBC Newsweek, 11 Sep. 2025
Products were impacted by bacterial contamination and undeclared allergens.
—Jenna Anderson, Health, 11 Sep. 2025
Independent sources are vital to expose victimization within Cambodian scam compounds — these are essentially undeclared prison cities where many workers have been trafficked for the purpose of carrying out fraud.
—Christine Ro, Forbes.com, 10 Sep. 2025
When foreign intelligence or international monitors would reveal an undeclared activity during the course of nuclear diplomacy, North Korea would ratchet up pressure by testing missiles or provoking Seoul.
—Vipin Narang, Foreign Affairs, 5 Sep. 2025
See All Example Sentences for undeclared
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.
Matthew Robinson, MSNBC Newsweek, 11 Sep. 2025
Products were impacted by bacterial contamination and undeclared allergens.
—Jenna Anderson, Health, 11 Sep. 2025
Independent sources are vital to expose victimization within Cambodian scam compounds — these are essentially undeclared prison cities where many workers have been trafficked for the purpose of carrying out fraud.
—Christine Ro, Forbes.com, 10 Sep. 2025
When foreign intelligence or international monitors would reveal an undeclared activity during the course of nuclear diplomacy, North Korea would ratchet up pressure by testing missiles or provoking Seoul.
—Vipin Narang, Foreign Affairs, 5 Sep. 2025
See All Example Sentences for undeclared
Cite this Entry
“Undeclared.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undeclared. Accessed 15 Sep. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share