disharmonious vs dissonant

disharmonious and dissonant both are adjectives.

Word	Noun	Adjective	Verb	Adverb
disharmonious	No	Yes	No	No
dissonant	No	Yes	No	No

As adjectives, disharmonious and dissonant are synonyms defined as:

Other synonyms of disharmonious include discordant, inharmonic.

disharmonious (adjective)	dissonant (adjective)
lacking in harmony	not in accord
	lacking in harmony
	characterized by musical dissonance; harmonically unresolved