psychological disorder vs mental disturbance

psychological disorder and mental disturbance both are nouns.

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

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

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

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

psychological 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