unshared vs exclusive

unshared is not a noun while exclusive is a noun.

Word	Noun	Adjective	Verb	Adverb
unshared	No	Yes	No	No
exclusive	Yes	Yes	No	No

unshared (noun)	exclusive (noun)
	a news report that is reported first by one news organization

unshared (adjective)	exclusive (adjective)
not shared	excluding much or all; especially all but a particular group or minority
	not divided among or brought to bear on more than one object or objective
	not divided or shared with others