nauseated vs queasy

nauseated and queasy both are adjectives.

Word	Noun	Adjective	Verb	Adverb
nauseated	No	Yes	No	No
queasy	No	Yes	No	No

As adjectives, nauseated and queasy are synonyms defined as:

Other synonyms of nauseated include nauseous, sick, sickish.

nauseated (adjective)	queasy (adjective)
feeling nausea; feeling about to vomit	feeling nausea; feeling about to vomit
	causing or fraught with or showing anxiety
	causing or able to cause nausea