insane, cracy, mad,mental disorder?

[Ju]

What are the differences between insane, cracy, mad, ,mental disorder?

May I try:

1. insane
very serious of mental disorder and it's a kind of serious and formal description

2. cracy
casual description of insane

3. mad
same as cracy

4. mental disorder

very formal way in writing


Ju

[shroob]

What are the differences between insane, crazy, mad, ,mental disorder?

May I try:

1. insane
very serious of mental disorder and it's a kind of serious and formal description
2. crazy
casual description of insane
3. mad
same as crazy
4. mental disorder
very formal way in writing

Ju

Depending on the context there can be a difference in meaning. If you were talking about a person being insane then crazy or mad could also suffice, though insane tends to be more serious/ or suggests a greater degree of madness.

Mental disorder could refer to a range of issues, not just insanity or madness. Depression, OCD or schizophrenia could also be called, 'mental disorders'.

Mad can also refer to an emotion, similar to being angry (as well as meaning insane). You can be mad, but not insane or crazy.

If you have any questions please ask.

[Rover_KE]

Ju, you made a good try.

In addition to shroob's excellent answer, I'll just add that informally, being crazy (note spelling) or mad can simply mean irrational, eccentric, stupid, dotty, potty, wacky, crackers, cuckoo, nuts etc.

Such a person causes no harm to him/herself or others.

Insanity and other mental disorders need the intervention of, or treatment by, medical or psychiatric professionals.

Rover

[Tdol]

Colloquially, insane can be also used like crazy IMO.