Difference between Insane and Crazy

INSANE vs CRAZY: NOUN

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

Bizarre or fantastic
Possessed by inordinate excitement
Intensely enthusiastic about or preoccupied with
Foolish; totally unsound
Marked by foolish or unreasoning fondness
Affected with madness or insanity
In love; experiencing romantic feelings.
Overly excited or enthusiastic.
Out of control.
Insane; demented.
A bedquilt made of pieces of silk or other material of various sizes, shapes, and colors, fancifully stitched together without definite plan or arrangement.
The bony projection at the end of the elbow (olecranon), behind which passes the ulnar nerve; -- so called on account of the curiously painful tingling felt, when, in a particular position, it receives a blow; -- called also funny bone.
Inordinately desirous; foolishly eager.
Broken, weakened, or dissordered in intellect; shattered; demented; deranged.
Unexpected; surprising.
Foolish or impractical; senseless.
Intensely involved or preoccupied.
Immoderately fond; infatuated.
Possessed by enthusiasm or excitement.
Departing from proportion or moderation, especially.
Mentally deranged.
Characterized by weakness or feebleness; decrepit; broken; falling to decay; shaky; unsafe.

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.

Broken; impaired; dilapidated; weak; feeble: applied to any structure, but especially to a building or to a boat or a coach: as, a crazy old house or vessel.
Broken, weakened, or disordered in intellect; deranged; insane; demented.
Caused by or arising from mental derangement; marked by or manifesting insanity: as, a crazy speech; crazy actions.
Foolish
Totally unsound
(idiom) (like crazy) To an exceeding degree.

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

Impractical, Loving, Sick, Smitten, Enamored, Infatuated, Unhinged, Demented, Gaga, Looney, Loony, Weirdo, Strange, Insane, Mad

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

Impractical, Loving, Sick, Smitten, Enamored, Infatuated, Unhinged, Demented, Gaga, Looney, Loony, Weirdo, Strange, Insane, Mad

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.

And now our gd government has gone crazy.
And I miss you like crazy, I miss you like crazy.
She was crazy, as crazy as he was, and just as needy.
The idea is definitely crazy, but if it is crazy enough to be true?
Brown just thought somebody had to do something; he was driven crazy by the crazy system of slavery.
People called her crazy, and to be fair she must have seemed crazy.
He was, even more than Nero, most likely crazy, certifiably crazy.
MY HERO ACADEMIA biggest FAN LOL THAT WAS CRAZY, CRAZY AWESOME.
Losing weight like crazy an about going crazy!
Seems crazy, but clearly its me that is crazy!