Queasy means feeling sick to your stomach, like you might throw up. When you're queasy, your stomach feels unsettled and uncomfortable: maybe it's churning, or you feel dizzy and need to sit down. You might feel queasy after spinning around too many times, riding in the back seat of a car on a winding road, or eating something that didn't agree with you.

The word can also describe feeling uneasy or uncomfortable about something in a non-physical way. You might feel queasy about lying to a friend, even if your stomach isn't actually bothering you. When someone says a scary movie made them feel queasy, they might mean it genuinely upset their stomach, or they might mean it made them deeply uncomfortable.

People often say they feel a little queasy or kind of queasy because it's usually not as severe as actually being sick. It's that warning feeling your body gives you that something's not quite right, whether that's in your stomach or your conscience.