Related Clues:

• Highly perceptive
• Sharp angle
• Extremely sharp or intense
• What a mirror image has
• Less than 90 degrees
• Like some triangle angles
• Sharp or severe
• Quite sharp, as a pain
• Well-tuned
• Angle less than 90 degrees
• Very serious
• Base line on a graph
• ___ of Evil
• Type of angle
• '40s foe