groundbreaking vs original

groundbreaking and original both are nouns.

Word	Noun	Adjective	Verb	Adverb
groundbreaking	Yes	Yes	No	No
original	Yes	Yes	No	No

groundbreaking (noun)	original (noun)
the ceremonial breaking of the ground to formally begin a construction project	an original creation (i.e., an audio recording) from which copies can be made
	something that serves as a model or a basis for making copies

groundbreaking (adjective)	original (adjective)
being or producing something like nothing done or experienced or created before	being or productive of something fresh and unusual; or being as first made or thought of
	(of e.g. information) not secondhand or by way of something intermediary
	not derived or copied or translated from something else
	preceding all others in time or being as first made or performed