well-defined

adjective

well-de·​fined ˌwel-di-ˈfīnd How to pronounce well-defined (audio)
Synonyms of well-definednext
1
: having clearly distinguishable limits, boundaries, or features
a well-defined scar
2
: clearly stated or described
well-defined policies

Examples of well-defined in a Sentence

Recent Examples on the Web
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.
The verticals winning are those where the last-mile work is well-defined, regulated, and high-stakes enough that enterprises will pay for reliability. Josipa Majic Predin, Forbes.com, 25 May 2026 Variables needed to be well-defined and accounted for, even in their unpredictability. Literary Hub, 5 May 2026 From a risk/reward standpoint, the trade is well-defined. Frank Cappelleri, CNBC, 10 Apr. 2026 Take the gas giants Jupiter or Saturn, for example, which have large, dense and well-defined cores that on their own are ten times more massive than Earth. Keith Cooper, Space.com, 19 Mar. 2026 See All Example Sentences for well-defined

Word History

First Known Use

1551, in the meaning defined at sense 1

Time Traveler
The first known use of well-defined was in 1551

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Cite this Entry

“Well-defined.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/well-defined. Accessed 1 Jun. 2026.

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