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mass hysteria

American  

noun

Psychology.
  1. a condition affecting a group of persons, characterized by excitement or anxiety, irrational behavior or beliefs, or inexplicable symptoms of illness.


Etymology

Origin of mass hysteria

First recorded in 1930–35

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

“It is a virus for which humanity has no cure,” Noah tells his former colleague, implying the mass hysteria caused by the confirmation of aliens will only drive us closer to ruin.

From Salon Jun. 13, 2026

This is very bad, although hardly a Ghostbusters-style, apocalyptic vision that includes human sacrifice and mass hysteria.

From Barron's May 1, 2026

"With the look of the wolf - as we've seen with the Preston three - if you get one wandering, you get mass hysteria."

From BBC Jan. 11, 2026

She has them read books such as The Crucible and the Lord of the Flies to teach about the dangers of mass hysteria and group vilification.

From Slate Dec. 5, 2025

For decades, the Princeton study was cited as evidence that the Halloween broadcast caused mass hysteria.

From "Spooked!" by Gail Jarrow

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