distinctiveness vs specialty

distinctiveness and specialty both are nouns.

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

As nouns, distinctiveness and specialty are synonyms defined as:

Other synonyms of distinctiveness include peculiarity, speciality, specialness.

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