"nauseous" in the adjective sense
1. nauseating, nauseous, noisome, queasy, loathsome, offensive, sickening, vile
causing or able to cause nausea
"a nauseating smell"
"a sickening stench"
2. nauseated, nauseous, queasy, sick, sickish
feeling nausea feeling about to vomit
Source: WordNet® (An amazing lexical database of English)
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