Related Clues:

• Severe, as pain
• It's never right
• Like severe pain
• Sharp-sighted
• Geometry term
• Sharply felt
• Less than 90 degrees, anglewise
• Like an angle that's less than 90 degrees
• Angle that's smaller than 90 degrees
• Not chronic, as illness
• Like a 45° or 60° angle
• Like many triangle angles
• Less than 90°, as an angle
• Perceptive and shrewd
• Angle of less than 39 degrees