dissonant vs dissonance

dissonant is not a noun while dissonance is a noun.

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

dissonant (noun)	dissonance (noun)
	disagreeable sounds
	the auditory experience of sound that lacks musical quality; sound that is a disagreeable auditory experience
	a conflict of people's opinions or actions or characters

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