1
as in illusion
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 delusion
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 hallucination
Tackle hallucinations with robust validation pipelines, keep human-in-the-loop review for critical outputs and ongoing monitoring of model performance.
—
Diganta Sengupta, Forbes.com, 23 June 2025
Others may involve only the brain, causing mental changes such as hallucinations, vertigo, or blackouts.
—Lucy Notarantonio, MSNBC Newsweek, 18 June 2025
Another huge risk is AI hallucinations, which even Google CEO Sundar Pichai admits is not an easy problem to solve.
—Emily Forlini, PC Magazine, 18 June 2025
Six months later, Nadja was discovered screaming in terror in the corridor of her hotel, having seen men on the roof (in an ironic echo of a scene Breton reports in the book—and which might in fact have been workmen on the neighboring rooftop, rather than the hallucination commonly supposed).
—Mark Polizzoti
june 16, Literary Hub, 16 June 2025
See All Example Sentences for hallucination
Diganta Sengupta, Forbes.com, 23 June 2025
Others may involve only the brain, causing mental changes such as hallucinations, vertigo, or blackouts.
—Lucy Notarantonio, MSNBC Newsweek, 18 June 2025
Another huge risk is AI hallucinations, which even Google CEO Sundar Pichai admits is not an easy problem to solve.
—Emily Forlini, PC Magazine, 18 June 2025
Six months later, Nadja was discovered screaming in terror in the corridor of her hotel, having seen men on the roof (in an ironic echo of a scene Breton reports in the book—and which might in fact have been workmen on the neighboring rooftop, rather than the hallucination commonly supposed).
—Mark Polizzoti
june 16, Literary Hub, 16 June 2025
See All Example Sentences for hallucination
Recent Examples of Synonyms for hallucination
Noun
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The illusion is caused by the moon being seen close to the horizon, where trees and buildings give the human brain context.—
Jamie Carter,
Forbes.com,
11 July 2025
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Call it pixie dust, projection, illusion, artifice — who really cares?—
Teri Sforza,
Oc Register,
11 July 2025
Noun
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At his trial, Fish's children described a chaotic home life marked by erratic behavior, religious delusions and violence.—
Christina Coulter,
People.com,
12 July 2025
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The private and personalized nature of AI use makes its mental health impact difficult to track, but the evidence of potential harms is mounting, from professional apathy to attachments to new forms of delusion.—
Parmy Olson,
Mercury News,
12 July 2025
Noun
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The onetime dream of widespread debt forgiveness has been extinguished, and a five-year reprieve for people who had defaulted on student loans expired in May of this year.—
Brit Morse,
Fortune,
8 July 2025
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With the help of a starlet named Vera, her dream of meeting him slowly takes shape.—
Marta Balaga,
Variety,
8 July 2025
Noun
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Reason 2: The Obsession with Control The second myth plaguing modern business is the assumption that complex systems can be controlled through tighter management processes.—
Tima Bansal,
Forbes.com,
11 July 2025
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In my own writing, the process of myth making fascinates me.—
Irenosen Okojie
July 11,
Literary Hub,
11 July 2025
Noun
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The maid gazes out the window, her mouth slightly open, as if lost in boredom or a daydream.—
Jerry Saltz,
Vulture,
2 July 2025
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For a home base that’s as inspiring as the journey itself, The Ritz-Carlton, Half Moon Bay rises from the cliffs like something out of a coastal daydream.—
Roger Sands,
Forbes.com,
1 July 2025
Noun
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This copy may not be in its final form, may be updated and may contain minor transcription errors.—
ABC News,
ABC News,
13 July 2025
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Unforced error after unforced error plagued the team.—
Emma Moon,
Charlotte Observer,
13 July 2025
Noun
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This cosmic climate blurs the boundaries between fantasy and reality, offering you the opportunity to overcome challenges or doubts that have held you back in the past.—
Danijela Pilic,
Glamour,
10 July 2025
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Competing authors are trapped in their respective science fiction/fantasy stories and need help getting each other out.—
WIRED,
Wired News,
10 July 2025
Noun
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That vision isn't just shared within ESA: it's being championed at the highest levels of European policy.—
Daisy Dobrijevic,
Space.com,
11 July 2025
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American Christianity must reclaim this vision, before the hell-bent politics of evangelicalism create hell on Earth.—
MSNBC Newsweek,
MSNBC Newsweek,
11 July 2025
Cite this Entry
“Hallucination.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/hallucination. Accessed 19 Jul. 2025.
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