Related Clues:

• Sombre
• Lower, as headlights
• Lower, as the lights
• Dusky
• Lacking light
• Lower, as lights
• Slower picking up things
• More inane
• Like fruitcake, vis-à-vis angelfood cake
• Badly lit
• Not very likely
• Badly illuminated
• Needing light
• Unlikely to happen
• More concentrated