psychological condition vs mental state

psychological condition and mental state both are nouns.

Word	Noun	Adjective	Verb	Adverb
psychological condition	Yes	No	No	No
mental state	Yes	No	No	No

As nouns, psychological condition and mental state are synonyms defined as:

psychological condition and mental state: (psychology) a mental condition in which the qualities of a state are relatively constant even though the state itself may be dynamic

Other synonyms of psychological condition include mental condition, psychological state.

psychological condition (noun)	mental state (noun)
(psychology) a mental condition in which the qualities of a state are relatively constant even though the state itself may be dynamic	(psychology) a mental condition in which the qualities of a state are relatively constant even though the state itself may be dynamic