nauseated vs sickish

nauseated and sickish both are adjectives.

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

As adjectives, nauseated and sickish are synonyms defined as:

Other synonyms of nauseated include nauseous, queasy, sick.

nauseated (adjective)	sickish (adjective)
feeling nausea; feeling about to vomit	feeling nausea; feeling about to vomit