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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

Derived 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.

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

Miles Davis, the trumpeter whose lyrical simplicity often reduced his audiences to tears but whose demonic habits sometimes overshadowed his genius for jazz, died Saturday in St.

From Los Angeles Times • May 25, 2026

They worked it downfield, through the puddles, through and around the demonic Italian players, over halfway and into the enemy 22.

From BBC • Feb. 7, 2026

Mick Jagger, the demonic frontman, was barely slowed by the replacement of his aortic valve in 2019.

From The Wall Street Journal • Dec. 11, 2025

I looked up at that moment and saw a pink demonic face staring down at me from the glass eye of the turret.

From "Dragonwings" by Laurence Yep

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