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

The retailer identified and corrected a temporary equipment issue that may have resulted in the presence of the undeclared milk allergen in these products. —Michele Laufik, Martha Stewart, 6 Apr. 2026

Wawa is recalling four of its 16-ounce drinks sold across five states, including the Philadelphia area, due to a possible undeclared milk allergen. —Frederick Sutton Sinclair, CBS News, 4 Apr. 2026

Food produced without inspection may contain undeclared allergens, harmful bacteria or other contaminants, according to the FSIS. —Greta Cross, USA Today, 27 Mar. 2026

Moore’s decision to court the Farm Animal Rights Movement and disparage the work of Maryland farmers appears less like a genuine moral objection to animal cruelty and more like a desperate attempt to recover momentum in his ailing, undeclared campaign for president. —Torrey Snow, Baltimore Sun, 18 Mar. 2026

Word History

First Known Use

1526, in the meaning defined above

Rhymes for undeclared

• aired
• bared
• blared
• caird
• cared
• chaired
• dared
• erred
• fared
• flared
• glared
• haired