exclusive vs unshared

exclusive is a noun but unshared is not a noun.

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

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

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