- of, relating to, or characteristic of a demon; fiendish
- inspired or possessed by a demon, or seemingly so: demonic laughter
WordReference Random House Unabridged Dictionary of American English © 2026
de•mon•ic
(di mon′ik),USA pronunciation adj.
de•mon′i•cal•ly, adv.
- inspired as if by a demon, indwelling spirit, or genius.
- demoniac (def. 1).
- Greek daimonikós, equivalent. to daimon- demon- + -ikos -ic
- Late Latin daemonicus
- 1655–65
- 1. frantic, frenzied, obsessed, possessed.
Collins Concise English Dictionary © HarperCollins Publishers::
demonic /dɪˈmɒnɪk/, demonical /dɪˈmɒnɪkəl/ adj
de•mon /ˈdimən/USA pronunciation
n. [countable]
WordReference Random House Unabridged Dictionary of American English © 2026- an evil spirit; fiend:a ceremony to exorcise demons from the haunted house.
- a wicked or cruel person.
- one with great energy:a demon for work.
de•mon
(dē′mən),USA pronunciation n.
adj.
demon-,
- an evil spirit;
devil or fiend. - an evil passion or influence.
- a person considered extremely wicked, evil, or cruel.
- a person with great energy, drive, etc.:He's a demon for work.
- a person, esp. a child, who is very mischievous:His younger son is a real little demon.
- Mythologydaemon.
- British Terms[Australian Slang.]a policeman, esp. a detective.
adj.
- of, pertaining to, characteristic of, or noting a demon.
- possessed or controlled by a demon.
- Latin; see daemon
- Greek daimónion, thing of divine nature (in Jewish and Christian writers, evil spirit), neuter of daimónios, derivative of daímōn; (def. 6)
- Latin daemonium
- Middle English 1350–1400
demon-,
- var. of demono- before a vowel:demonism.
'demonic' also found in these entries (note: many are not synonyms or translations):