1. a feeling of nausea or sickness in the stomach
2. a feeling of uneasiness or discomfort about something

Examples

• The boat ride caused severe queasiness in several passengers.
• She felt a wave of queasiness after eating the spoiled food.
• His queasiness about the decision kept him awake all night.
• The smell of the medicine triggered her queasiness.
• There was a general queasiness among investors about the market crash.
• The queasiness in her stomach made it hard to concentrate on work.