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

Frito-Lay recently recalled some bags of Tostitos Tortilla Chips due to an undeclared allergen, and some of those were sent to retailers in Kentucky. —Anthony Robledo, The Courier-Journal, 2 July 2025

However, the International Atomic Energy Association reported on May 31 that Iran had breached its non-proliferation obligations, citing undeclared locations, materials, and activities which could be used to make nuclear weapons. —Jill Goldenziel, Forbes.com, 26 June 2025

Then in the brand’s Sesame Miso Salad with Salmon was recalled due to an undeclared allergen. —Moná Thomas, People.com, 23 June 2025

The undeclared activities all predated the J.C.P.O.A. —Isaac Chotiner, New Yorker, 22 June 2025

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