sweet-smelling vs odoriferous

sweet-smelling and odoriferous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
sweet-smelling	No	Yes	No	No
odoriferous	No	Yes	No	No

As adjectives, sweet-smelling and odoriferous are synonyms defined as:

Other synonyms of sweet-smelling include odorous, perfumed, scented, sweet-scented, sweet.

sweet-smelling (adjective)	odoriferous (adjective)
having a natural fragrance	having a natural fragrance
	emitting an odor