1
as in visions
a conception or image created by the imagination and having no objective reality
were the voices real, or merely a hallucination?
Synonyms & Similar Words
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Antonyms & Near Antonyms
2
as in delusions
a false idea or belief
the common hallucination that gluttony during the holiday season doesn't have consequences
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
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Recent Examples of hallucinations
Companies haven’t proved yet that their models are free from hallucinations.
—
The Week Us, TheWeek, 4 Feb. 2026
The results indicate that techniques such as cropping images so models focus their attention on relevant regions and applying reinforcement learning for reasoning can minimize hallucinations in VLMs.
—IEEE Spectrum, 29 Jan. 2026
Mushroom poisoning can lead to liver damage, kidney damage, hallucinations, seizures and even death.
—Tim Fang, CBS News, 28 Jan. 2026
Seventeen percent of central Slovakian Parkinson’s patients experience hallucinations.
—Rafil Kroll-Zaidi, Harpers Magazine, 27 Jan. 2026
Agentic messup started small, with hallucinations or bad advice from chatbots.
—Bipul Sinha, Fortune, 27 Jan. 2026
Healthcare institutions also face legitimate concerns about AI hallucinations — instances where the model generates plausible-sounding but medically inaccurate information.
—Sahar Hashmi, Forbes.com, 25 Jan. 2026
The effectiveness of the tech itself has also repeatedly been called into question, from frequent hallucinations and an inability to complete real-world office tasks to ongoing concerns over data security.
—Victor Tangermann, Futurism, 21 Jan. 2026
The neuropsychiatric effects of Huntington's disease include mood changes and altered thinking, such as hallucinations and delusions.
—Heidi Moawad, Verywell Health, 19 Jan. 2026
The Week Us, TheWeek, 4 Feb. 2026
The results indicate that techniques such as cropping images so models focus their attention on relevant regions and applying reinforcement learning for reasoning can minimize hallucinations in VLMs.
—IEEE Spectrum, 29 Jan. 2026
Mushroom poisoning can lead to liver damage, kidney damage, hallucinations, seizures and even death.
—Tim Fang, CBS News, 28 Jan. 2026
Seventeen percent of central Slovakian Parkinson’s patients experience hallucinations.
—Rafil Kroll-Zaidi, Harpers Magazine, 27 Jan. 2026
Agentic messup started small, with hallucinations or bad advice from chatbots.
—Bipul Sinha, Fortune, 27 Jan. 2026
Healthcare institutions also face legitimate concerns about AI hallucinations — instances where the model generates plausible-sounding but medically inaccurate information.
—Sahar Hashmi, Forbes.com, 25 Jan. 2026
The effectiveness of the tech itself has also repeatedly been called into question, from frequent hallucinations and an inability to complete real-world office tasks to ongoing concerns over data security.
—Victor Tangermann, Futurism, 21 Jan. 2026
The neuropsychiatric effects of Huntington's disease include mood changes and altered thinking, such as hallucinations and delusions.
—Heidi Moawad, Verywell Health, 19 Jan. 2026
Recent Examples of Synonyms for hallucinations
Noun
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Two different visions While Wooster focused on the administration’s diplomatic approach, Holmes argued for significantly greater investment in Haiti’s security apparatus, with Haitians in the lead.—
Jacqueline Charles,
Miami Herald,
11 Feb. 2026
-
Abu Dhabi and Riyadh are in a public standoff over competing visions for the region, with the clearest rupture playing out in Yemen.—
Mohammed Sergie,
semafor.com,
9 Feb. 2026
Noun
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So the dreams — or delusions — of past officials proved false.—
Edward Lotterman,
Twin Cities,
1 Feb. 2026
-
The darkly comedic drama confronts reality, privacy, and the delusions fueling our ever-changing world.—
Denise Petski,
Deadline,
29 Jan. 2026
Noun
-
Jake LaRavia was destined to play for the LA Lakers, the team of his father's youth, closing a family loop of boyhood dreams and untimely death, Gregg Doyel writes.—
Joe Mutascio,
IndyStar,
10 Feb. 2026
-
After 50 years of helping skaters achieve their dreams, the man who was always behind the scenes got to live his.—
Los Angeles Times,
Los Angeles Times,
9 Feb. 2026
Noun
-
Rybakina was under more scoreboard pressure in her service games, but Sabalenka’s opportunities were mostly illusions.—
Matthew Futterman,
New York Times,
31 Jan. 2026
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Saturn brings accountability, Neptune dissolves illusions and Aries demands action.—
Valerie Mesa,
PEOPLE,
30 Jan. 2026
Noun
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My very specific fantasies about the Iran of the future are my way of keeping the political imagination alive and open.—
Arash Azizi,
Time,
3 Feb. 2026
-
There is no shortage of opportunities for children, particularly Black and brown ones, to be disabused of their fantasies.—
Angie Han,
HollywoodReporter,
30 Jan. 2026
Noun
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The chief human resources officer at $76 billion giant Colgate-Palmolive, Sally Massey, dispelled the myths that Gen Z only brings high standards and chaos to the workplace.—
Emma Burleigh,
Fortune,
5 Feb. 2026
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Now, there are some myths circulating around the benefits of hot water.—
Julia Ries Wexler,
Outside,
4 Feb. 2026
Noun
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Shortly after, the book began to take shape, with new elements often arriving in vivid daydreams and eerie nightmares.—
Charlie Vargas,
Oc Register,
30 Jan. 2026
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And like the iconic Orient-Express (whose original route has been revived by Belmond's Venice Simplon-Orient-Express), the Champagne flutes, suited servers, and glossy design of this locomotive hold a seductive potential for daydreams and drama.—
Arati Menon,
Condé Nast Traveler,
28 Jan. 2026
Noun
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Transcript text may be revised to correct errors or match updates to audio.—
Bill Chappell,
NPR,
7 Feb. 2026
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Texas coach Vic Schaefer has also yanked post players Justice Carlton and Ashton Judd after on-court errors in the first half, and the Longhorns entered this timeout with four guards and Oldacre on the court.—
Danny Davis,
Austin American Statesman,
6 Feb. 2026
Cite this Entry
“Hallucinations.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/hallucinations. Accessed 15 Feb. 2026.
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