undefined
adjective
un·de·fined
ˌən-di-ˈfīnd 
: not defined: such as
a
: 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
William Greider
b
: not provided with a definition
an undefined dictionary entry
Examples of undefined in a Sentence
plagued by undefined worries that kept her awake at night
Recent Examples on the Web
But after four years in strategy, Levine felt the pull toward something different, something undefined.
—Jason Phillips, USA Today, 8 Dec. 2025
Those problems add to the fact that tokenized equities are relatively new and regulatory guidelines for the asset class remain largely undefined.
—Liz Napolitano, CNBC, 5 Dec. 2025
However, these factors, along with a lack of clarity in Ab 432 regarding undefined terms, still raise significant cost and implementation concerns.
—Giulia Carbonaro, MSNBC Newsweek, 5 Dec. 2025
Frenzied shapes—sparks, ribbons, spirals, glyphs, shadowy crosses, serpents—float among them through an undefined ether, as if transmitting cryptic information.
—Alice Gregory, New Yorker, 16 Nov. 2025
See All Example Sentences for undefined
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Jason Phillips, USA Today, 8 Dec. 2025
Those problems add to the fact that tokenized equities are relatively new and regulatory guidelines for the asset class remain largely undefined.
—Liz Napolitano, CNBC, 5 Dec. 2025
However, these factors, along with a lack of clarity in Ab 432 regarding undefined terms, still raise significant cost and implementation concerns.
—Giulia Carbonaro, MSNBC Newsweek, 5 Dec. 2025
Frenzied shapes—sparks, ribbons, spirals, glyphs, shadowy crosses, serpents—float among them through an undefined ether, as if transmitting cryptic information.
—Alice Gregory, New Yorker, 16 Nov. 2025
See All Example Sentences for undefined
Cite this Entry
“Undefined.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undefined. Accessed 10 Dec. 2025.
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