mental disorder vs mental disturbance

mental disorder and mental disturbance both are nouns.

Word	Noun	Adjective	Verb	Adverb
mental disorder	Yes	No	No	No
mental disturbance	Yes	No	No	No

As nouns, mental disorder and mental disturbance are synonyms defined as:

mental disorder and mental disturbance: (psychiatry) a psychological disorder of thought or emotion; a more neutral term than mental illness

Other synonyms of mental disorder include disturbance, folie, psychological disorder.

mental disorder (noun)	mental disturbance (noun)
(psychiatry) a psychological disorder of thought or emotion; a more neutral term than mental illness	(psychiatry) a psychological disorder of thought or emotion; a more neutral term than mental illness