[nau.seous] adj (1612) 1: causing nausea or disgust: nauseating
2: affected with nausea or disgust -- nau.seous.ly adv -- nau.seous.ness n usage Those who insist that nauseous can properly be used only in sense 1 and that in sense
2. it is an error for nauseated are mistaken. Current evidence shows these facts: nauseous is most frequently used to mean physically affected with nausea, usu. after a linking verb such as feel or become; figurative use is quite a bit less frequent. Use of nauseous in sense 1 is much more often figurative than literal, and this use appears to be losing ground to nauseating. Nauseated, while not rare, is less common than nauseous in sense 2.