foul-smelling vs noisome

foul-smelling and noisome both are adjectives.

Word	Noun	Adjective	Verb	Adverb
foul-smelling	No	Yes	No	No
noisome	No	Yes	No	No

As adjectives, foul-smelling and noisome are synonyms defined as:

Other synonyms of foul-smelling include fetid, foetid, foul, funky, ill-scented, smelly, stinking.

foul-smelling (adjective)	noisome (adjective)
offensively malodorous	offensively malodorous
	causing or able to cause nausea