as in vague
not seen or understood clearly
plagued by undefined worries that kept her awake at night
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Example Sentences
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Recent Examples of undefined
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
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
Recent Examples of Synonyms for undefined
Adjective
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The president has also been intentionally vague about his ultimate goal with Iran.—
Greg Myre,
NPR,
21 Feb. 2026
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These aren’t just vague wellness notions.—
Sally Jenkins,
The Atlantic,
21 Feb. 2026
Adjective
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Keep in mind that the 90-percent illuminated moon will also brighten the sky, making faint planets like Uranus harder to spot.—
Michele Laufik,
Martha Stewart,
23 Feb. 2026
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Telling stories, voicing the worst, questioning any and all who will understand and listen, who may have stories of their own to tell, is where the faintest glimmer of healing begins.—
Literary Hub,
Literary Hub,
23 Feb. 2026
Cite this Entry
“Undefined.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undefined. Accessed 28 Feb. 2026.
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