dissonance vs dissonant

dissonance is a noun but dissonant is not a noun.

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

dissonance (noun)	dissonant (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

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