Difference between Insane and Demoniac

INSANE vs DEMONIAC: NOUN

One who is or seems to be possessed by a demon.
One who is supposed to be possessed by a demon; one whose volition and other mental faculties seem to be overpowered. restrained, or disturbed in their regular operation by an evil spirit; specifically, a lunatic.
[capitalized] One of a section of the Anabaptists who maintained that, the devils would ultimately be saved.
A human being possessed by a demon or evil spirit; one whose faculties are directly controlled by a demon.
One of a sect of Anabaptists who maintain that the demons or devils will finally be saved.
Someone who acts as if possessed by a demon
One who is possessed or controlled by a demon.

Very foolish; absurd.
Immoderate; wild.
Having been determined to be in a condition that meets the legal definition of insanity.
Intended for use by such persons.
Characteristic of or associated with persons who are mentally deranged.
Of, exhibiting, or afflicted with mental derangement. Not used in psychiatric diagnosis.
Afflicted with or characteristic of mental derangement
Characterized by insanity or the utmost folly; chimerical; unpractical
Exhibiting unsoundness or disorder of mind; not sane; mad; deranged in mind; delirious; distracted. See insanity, 2.
Used by, or appropriated to, insane persons.
Causing insanity or madness.
Very foolish

Synonyms Crazed, lunatic, demented, maniacal.
Making insane; causing insanity.
Devoted to the use or care of the insane: as, an insane asylum.
Characteristic of a person mentally deranged; hence, wild; insensate; senseless.
Not sane; unsound or deranged in mind; crazy.

Pertaining to a demon or spirit.
Produced by demons; influenced by demons.
Of the character of a demon; acting as if possessed by demons; wild; frantic; extremely wicked or cruel.
Of, pertaining to, or like a demon or possession by a demon

Nutty, Schizophrenic, Paranoid, Loony, Batty, Maniac, Psychotic, Unhinged, Deranged, Demented, Idiotic, Mad, Bonkers, Lunatic, Crazy

Unrepressed, Incommunicable, Impious, Wrathful, Eldritch, Luciferian, Necromantic, Demonic, Amok, Agitated, Berserk, Possessed, Insane, Amuck, Demoniacal

Nutty, Schizophrenic, Paranoid, Loony, Batty, Maniac, Psychotic, Unhinged, Deranged, Demented, Idiotic, Mad, Bonkers, Lunatic, Crazy

Unrepressed, Incommunicable, Impious, Wrathful, Eldritch, Luciferian, Necromantic, Demonic, Amok, Agitated, Berserk, Possessed, Insane, Amuck, Demoniacal

This whole situation is insane and quite frankly is making me insane.
This is one insane quest fit for one insane faction of isolated geniuses.
Even if not deemed legally insane, a serial killer is certainly morally and ethnically insane.
If you want to demonstrate that someone is insane, then they gotta fucking look insane.
He acts insane but tries to insist I am the one who is insane.
Do people living through insane times realize just how insane that time is?
Asa was insane; but Asa was insane because the deed itself was insane.
Finally, I went insane, and not the good kind of insane either.
The people are all insane, the other animals are all insane, the earth is insane, Nature itself is insane.
Insane stunting circuits, insane jumps, insane speeds: Trackmania Turbo has it all.

Although such demoniac people are most abominable in theworld, still, by artificial means the world creates a false honor forthem.
He was the son of the demoniac god Loki and a giantess, Angerboda.
As they were going out, behold they brought a dumb demoniac to him.
Mark describes the demoniac as one who lived among the tombs.
Then we ordered the demoniac to walk into the church.
Unusual or especially perverse deeds, particularly when performed in public, are symptomatic of a demoniac.
They tried their method of exorcism on a fierce demoniac, and failed.
Her fellow demoniac, Sister Louise Capeau, was possessed until she died.
Such atheistic and demoniac cultivation of spiritual knowledge isalways futile.
This time it is not the demoniac that Jesus deals with, it is the mother of the demoniac.