nauseating vs nauseous

nauseating and nauseous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
nauseating	No	Yes	No	No
nauseous	No	Yes	No	No

As adjectives, nauseating and nauseous are synonyms defined as:

Other synonyms of nauseating include loathsome, noisome, offensive, queasy, sickening, vile.

nauseating (adjective)	nauseous (adjective)
causing or able to cause nausea	feeling nausea; feeling about to vomit
	causing or able to cause nausea