demoralising vs dispiriting

demoralising and dispiriting both are adjectives.

Word	Noun	Adjective	Verb	Adverb
demoralising	No	Yes	No	No
dispiriting	No	Yes	No	No

As adjectives, demoralising and dispiriting are synonyms defined as:

Other synonyms of demoralising include demoralizing, disheartening.

demoralising (adjective)	dispiriting (adjective)
destructive of morale and self-reliance	destructive of morale and self-reliance