unresolved vs dissonant

unresolved and dissonant both are adjectives.

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

As adjectives, unresolved and dissonant are synonyms defined as:

unresolved and dissonant: characterized by musical dissonance; harmonically unresolved

unresolved (adjective)	dissonant (adjective)
not solved	not in accord
characterized by musical dissonance; harmonically unresolved	lacking in harmony
not brought to a conclusion; subject to further thought	characterized by musical dissonance; harmonically unresolved