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

Nearly $30 billion of undeclared artisanal gold is exported from Africa to Dubai each year, according to charity Swissaid. — semafor.com, 4 Aug. 2026

Several dietary supplements were recalled in July because of possible undeclared prescription drugs, harmful bacteria or allergens. — Angela Rodriguez, Sacbee.com, 4 Aug. 2026

Per Lidl, the cookies sold under the company’s Eridanous brand contain undeclared allergens, including wheat, soy, milk and egg. — Saleen Martin, USA Today, 29 July 2026

Israel, widely believed to have undeclared nuclear weapons, has long been wary of Saudi Arabia accessing nuclear technology. — Arpita Dasika, CNN Money, 22 July 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