of, relating to, or like a demon; demonic: demoniac laughter.
possessed by or as by an evil spirit; raging; frantic.
a person seemingly possessed by a demon or evil spirit.
- de·mo·ni·a·cal·ly [dee-muh-nahy-ik-lee], /ˌdi məˈnaɪ ɪk li/, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use demoniac in a sentence
It illustrates, rather, their civilized need of special spiritual nurture while breasting the demoniac fury of modern warfare.How World War II's ‘Dear John’ Letters Changed American Society | Susan L. Carruthers | February 14, 2022 | Time
At the mention of the Merrill Horse, Poindexter's countenance took on a demoniac expression.The Courier of the Ozarks | Byron A. Dunn
Others came with demoniac yells, climbing upon the limbers and shooting horses.The Boys of '61 | Charles Carleton Coffin.
When the Count saw my face, his eyes blazed with a sort of demoniac fury, and he suddenly made a grab at my throat.Dracula | Bram Stoker
In his “Convulsionaries of Tangier” he has depicted with wild, demoniac energy the religious frenzy of a Turkish sect.The History of Modern Painting, Volume 1 (of 4) | Richard Muther
But the arrival of the dark rider brought the demoniac singing to an end.Legend Land, Volume 2 | Various
British Dictionary definitions for demoniac
of, like, or suggestive of a demon; demonic
suggesting inner possession or inspiration: the demoniac fire of genius
frantic; frenzied; feverish: demoniac activity
a person possessed by an evil spirit or demon
- demoniacally, adverb
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