The meaning of DEMONIAC is possessed or influenced by a demon. How to use demoniac in a sentence.

1. Possessed, produced, or influenced by a demon: demoniac creatures. 2. Of, resembling, or suggestive of a devil; fiendish: demoniac energy; a demoniacal fit.

Definition of 'demoniac' demoniac in British English (dɪˈməʊnɪˌæk ) adjective also: demoniacal (ˌdiːməˈnaɪəkəl )

There are seven meanings listed in OED's entry for the word demoniac, one of which is labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

Dec 14, 2025 · demoniac (comparative more demoniac, superlative most demoniac) Possessed or controlled by a demon. Of or pertaining to demons; demonic. quotations

DEMONIAC definition: of, relating to, or like a demon; demonic. See examples of demoniac used in a sentence.

de•mo•ni•ac (di mō′ nē ak′, dē′mə nī′ ak), adj. Also, de•mo•ni•a•cal (dē′mə nī′ ə kəl). USA pronunciation of, pertaining to, or like a demon; demonic: demoniac laughter. possessed by or …

Definition of demoniac. English dictionary and integrated thesaurus for learners, writers, teachers, and students with advanced, intermediate, and beginner levels.

demoniac (adjective) demoniac /dɪ ˈ moʊniˌæk/ adjective also demoniacal /ˌdiːmə ˈnajəkəl/ Britannica Dictionary definition of DEMONIAC [more demoniac; most demoniac] : demonic …

demoniac: Possessed, produced, or influenced by a demon.