dispirited vs down in the mouth

dispirited and down in the mouth both are adjectives.

Word	Noun	Adjective	Verb	Adverb
dispirited	No	Yes	No	No
down in the mouth	No	Yes	No	No

As adjectives, dispirited and down in the mouth are synonyms defined as:

dispirited and down in the mouth: filled with melancholy and despondency

Other synonyms of dispirited include blue, depressed, down, downcast, downhearted, gloomy, grim, low-spirited, low.

dispirited (adjective)	down in the mouth (adjective)
filled with melancholy and despondency	filled with melancholy and despondency
marked by low spirits; showing no enthusiasm