unworthiness vs inappropriateness

unworthiness and inappropriateness both are nouns.

Word	Noun	Adjective	Verb	Adverb
unworthiness	Yes	No	No	No
inappropriateness	Yes	No	No	No

As nouns, unworthiness and inappropriateness are synonyms defined as:

unworthiness and inappropriateness: the quality of being not particularly suitable or befitting

unworthiness (noun)	inappropriateness (noun)
the quality or state of lacking merit or value	the quality of being not particularly suitable or befitting
the quality of being not particularly suitable or befitting	inappropriate conduct