1. feeling sleepy or ready to fall asleep
2. causing sleepiness or a lack of alertness

Examples

• The warm afternoon sun made her feel drowsy.
• He became drowsy after taking the medication.
• The drowsy driver pulled over to rest.
• The lecture hall was warm and drowsy.
• She felt drowsy and decided to take a nap.
• The drowsy effects of the antihistamine lasted for hours.
• Children often get drowsy after a big meal.