nauseated, nauseous
Nauseated and nauseous are not interchangeable.
Nauseated is an intransitive verb that means to be affected by nausea or to feel ill or disgust.
Nauseous is an adjective that means causing nausea or the feeling of disgust.
The difference in usage is part of speech.
Examples:
- I’m nauseated from that horrible smell.
- Those were some nauseous chili dogs.
- I ate too many chili dogs and now I’m nauseated.
- That is a nauseous smell!
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