- Feeling sick to one's stomach.
- Feeling uneasy or uncomfortable.
Early 16th century (in the sense "easily upset"): from quease + -y.
- The smell of the fish made her feel queasy.
- The roller coaster ride made him feel queasy.
- The thought of eating the food made her feel queasy.
- He felt queasy when he heard the news.
- The motion of the boat made her feel queasy.