Related Clues:

• Cloudy, not bright
• Angle greater than 90 degrees
• Not clear or not too bright
• Not bright, cloudy
• Dense, dim
• Blunt or unintelligent
• Not bright, poorly lit
• Lacking in light
• 'Dense, slow (6)'
• Can't quite see the angle
• Not bright or distinct
• Dense, dim about the angle
• It's a bit thick that it's not acute
• So, with the tube, you do not get a cute, perhaps, combination
• A cute opposite