as in vague
not seen or understood clearly
plagued by undefined worries that kept her awake at night
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Recent Examples of undefined
Taken together, these disparate elements have created a new realm of media players that remains largely undefined.
—
Caitlin White, Variety, 29 Apr. 2026
Texas regulators flagged dozens of deficiencies in Camp Mystic's emergency plan, saying missing flood maps, unclear evacuation procedures and undefined staff roles could hinder responses during disasters or medical emergencies.
—Doug Myers, CBS News, 24 Apr. 2026
Sid Vangala, senior AI systems engineer and architect at MasTec, said the industry is entering an era where responsibility boundaries are completely undefined.
—Arthur Zaczkiewicz, Footwear News, 20 Apr. 2026
Leave ownership undefined, and the moon will become a playground for politicians and their cronies.
—Antony Davies, Boston Herald, 19 Apr. 2026
See All Example Sentences for undefined
Caitlin White, Variety, 29 Apr. 2026
Texas regulators flagged dozens of deficiencies in Camp Mystic's emergency plan, saying missing flood maps, unclear evacuation procedures and undefined staff roles could hinder responses during disasters or medical emergencies.
—Doug Myers, CBS News, 24 Apr. 2026
Sid Vangala, senior AI systems engineer and architect at MasTec, said the industry is entering an era where responsibility boundaries are completely undefined.
—Arthur Zaczkiewicz, Footwear News, 20 Apr. 2026
Leave ownership undefined, and the moon will become a playground for politicians and their cronies.
—Antony Davies, Boston Herald, 19 Apr. 2026
See All Example Sentences for undefined
Recent Examples of Synonyms for undefined
Adjective
-
Confusing or vague ones do not.—
Michael Gargiulo,
Forbes.com,
22 May 2026
-
Many tech industry associations have been lobbying against KOSA, saying its tenets are vague and potentially unconstitutional.—
Jeremy Kahn,
Fortune,
19 May 2026
Adjective
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Auroras are surprisingly faint to the naked eye at first, especially during weaker geomagnetic storms, so dark skies make a huge difference.—
Valerie Mesa,
PEOPLE,
18 May 2026
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That can sound damning with faint praise, with his lack of wins, but people actually mean it.—
Dana O’Neil,
CNN Money,
18 May 2026
Cite this Entry
“Undefined.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undefined. Accessed 24 May. 2026.
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