un·​de·​fined ˌən-di-ˈfīnd How to pronounce undefined (audio)
: not defined: such as
: not clearly or precisely shown, described, or limited
undefined rules
undefined powers
a vague, undefined feeling of dread
… the true outlines of Clinton's foreign policy remain undefined.William Greider
: not provided with a definition
an undefined dictionary entry

Examples of undefined in a Sentence

Recent Examples on the Web At a time when hiring is harder than ever (there are 12.1 million open US jobs right now) and the future of work is still undefined, today’s layoff epidemic is sabotaging tomorrow's performance. Ann Kowal Smith, Forbes, 13 Feb. 2024 The painter chose a three-quarter portrait for his depiction and shows the young woman in a strictly frontal pose, close to the foreground, against a red, undefined background. Jon Haworth, ABC News, 26 Jan. 2024 The United Nations said intense fighting in Jabalia and eastern neighborhoods of the city encompassed 11.5 square miles, affecting an undefined number of residents after hundreds of thousands fled south. Stephen Kalin, WSJ, 9 Dec. 2023 Prometheus is, however, only capable of producing 100 tonnes of thrust, a capability that ESA appears to feel is inadequate for its as yet undefined future heavy-lift launch vehicles. Kevin Purdy, Ars Technica, 8 Dec. 2023 An unclear or undefined answer can foster a sense of uncertainty and increase stress. Expert Panel®, Forbes, 29 Nov. 2023 Section 3’s broad, undefined terms should give anyone pause. Amy Davidson Sorkin, The New Yorker, 21 Dec. 2023 Post has undefined replies and 0 Likes Press Enter to expand Bowser Guest 7:27 p.m. The Post's story said that the Mayor/City Council sent a proposal to Leonsis to renovate the arena on Sunday. Teo Armus, Washington Post, 13 Dec. 2023 There are currently undefined international travel plans for the exhibit. Nick Vivarelli, Variety, 30 June 2023 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'undefined.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1611, in the meaning defined above

Time Traveler
The first known use of undefined was in 1611

Dictionary Entries Near undefined

Cite this Entry

“Undefined.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undefined. Accessed 24 Feb. 2024.

More from Merriam-Webster on undefined

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