queasy vs nauseated

queasy and nauseated both are adjectives.

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

As adjectives, queasy and nauseated are synonyms defined as:

Other synonyms of queasy include nauseous, sick, sickish.

queasy (adjective)	nauseated (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