specialty vs distinctiveness

specialty and distinctiveness both are nouns.

Word	Noun	Adjective	Verb	Adverb
specialty	Yes	No	No	No
distinctiveness	Yes	No	No	No

As nouns, specialty and distinctiveness are synonyms defined as:

Other synonyms of specialty include peculiarity, speciality, specialness.

specialty (noun)	distinctiveness (noun)
the special line of work you have adopted as your career	utter dissimilarity
a distinguishing trait	a distinguishing trait
an asset of special worth or utility