causing or able to cause nausea; "a nauseating smell"; "nauseous offal"; "a sickening stench"
Causing, or fitted to cause, nausea; sickening; loathsome; disgusting; exciting abhorrence; as, a nauseous drug or medicine
{s} causing nausea; causing great repugnance, disgusting; feeling like vomiting, having an upset stomach (Informal)
If you feel nauseous, you feel as if you want to vomit. If the patient is poorly nourished, the drugs make them feel nauseous A nauseous wave of pain broke over her