dissimilitude vs unlikeness

dissimilitude and unlikeness both are nouns.

Word	Noun	Adjective	Verb	Adverb
dissimilitude	Yes	No	No	No
unlikeness	Yes	No	No	No

As nouns, dissimilitude and unlikeness are synonyms defined as:

dissimilitude and unlikeness: dissimilarity evidenced by an absence of likeness

dissimilitude (noun)	unlikeness (noun)
dissimilarity evidenced by an absence of likeness	dissimilarity evidenced by an absence of likeness