If you’re nauseous, you feel queasy and sick to your stomach, and you might feel like vomiting. Could be the stomach flu or too much food before that roller-coaster ride.

Nauseous comes from the Latin word nausea, which means "seasickness." That's certainly one reason for getting nauseous, but we don't limit this word to the seafaring world anymore. Not only do we use this adjective when we're feeling queasy, but we also use it to describe whatever is making us feel queasy. A smell that turns your stomach is a nauseous smell. We also use nauseous figuratively when we're "grossed out" by someone who's overly romantic or self-involved.

Definitions of nauseous

adj causing or able to cause nausea

nauseous offal”
loathsome, nauseating, noisome, offensive, queasy, sickening, vile
detrimental to physical or moral well-being

adj feeling nausea; feeling about to vomit

nauseated, queasy, sick, sickish
ill, sick
affected by an impairment of normal physical or mental function

Sign up, it's free!

Whether you're a student, an educator, or a lifelong learner, can put you on the path to systematic vocabulary improvement.