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Synonyms

demonic

American  
[dih-mon-ik] / dɪˈmɒn ɪk /
Also demonical or daemonic

adjective

  1. inspired as if by a demon, indwelling spirit, or genius.

    Synonyms:
    possessed, obsessed, frenzied, frantic
  2. demoniac.


demonic British  
/ dɪˈmɒnɪk /

adjective

  1. of, relating to, or characteristic of a demon; fiendish

  2. inspired or possessed by a demon, or seemingly so

    demonic laughter

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms


Etymology

Origin of demonic

1655–65; < Late Latin daemonicus < Greek daimonikós, equivalent to daimon- demon- + -ikos -ic


Explanation

Demonic is a word to describe behavior or people who are extremely evil or cruel. It helps to understand this word if you know a demon is a creature of hell. Demonic has that same kind of hellish, diabolical, fiendish, infernal, satanic, unholy quality. This word should not be used lightly. Stealing a candy bar, though wrong, is not demonic. Truly evil behavior, like being a serial killer, is more likely to be described as demonic. In superhero movies, the supervillains are likely to be demonic, since they are more evil than common storybook villains.

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Vocabulary lists containing demonic

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:

Still, he insists he knows a demonic possession when he sees one.

From Barron's ● Jul. 19, 2026

While some more skeptically minded clergy do not enjoy discussing demonic possession, each diocese is supposed to have a designated exorcist.

From Slate ● Jun. 8, 2026

Andy and Barbara Muschietti, co-creators of HBO’s prequel drama about Stephen King’s demonic clown, flavor the scarefest with themes of fascism, bigotry and the loss of innocence.

From Los Angeles Times ● Dec. 17, 2025

I think if you look at sort of notions of Christian morality, it also goes to notions of sort of innocence, being afflicted by demonic forces.

From Salon ● Nov. 20, 2025

Their fundamental claim is that, although some argue that such cases are miraculous or demonic, they are in fact perfectly easy to reproduce.

From "The Invention of Science" by David Wootton

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