Bloodshot/ˈblʌdʃɑːt/ Definition 1 of 1Pro Tip 1/3Physical Condition Often indicates someone is unwell or has strained their eyes due to lack of sleep. Her bloodshot eyes suggested she was coming down with something. Pro Tip 2/3Emotional Stress Can signify emotional distress, like crying or prolonged stress. His bloodshot eyes revealed the stress he was under. Pro Tip 3/3Possible Irritation May indicate irritation from smoke, pollution, or swimming in chlorinated water. Exiting the smoky room, she found her eyes were bloodshot.