Demoniac

//dɪˈməʊnɪak// adj, noun

adj, noun ·Moderate ·College level

Definitions

Noun
  1. 1
    Someone who is possessed by a demon.

    "The exorcism was dropped from the second Edwardian Prayer Book, because of its implication that unbaptised infants were demoniacs […]."

  2. 2
    someone who acts as if possessed by a demon wordnet
Adjective
  1. 1
    Possessed or controlled by a demon.
  2. 2
    Of or pertaining to demons; demonic.

    "How dark may be the hiding of God's face, Or what demoniac forms may seize the helm Of reason..."

Adjective
  1. 1
    of, pertaining to, or like a demon or possession by a demon wordnet

Synonyms

All synonyms
abandonedalieneamokanimalatrociousbarbaric

Example

More examples

"Kathy set about brightening her coworkers' day with fresh muffins when her demoniac alter ago, High Priestess Lilith, convinced her to poison them."

Etymology

From Middle English demoniak et al., from Old French demoniaque, from Late Latin daemoniacus.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.