Related Clues:

• Lacking intellectual substance
• Opposite of colorful
• Reading up Shakespeare is dull
• Not colorful at all
• Dreary poet returns
• Tip from Dominic Raab: dismissing answer is dull
• Visually plain
• Just plain plain
• Dull-looking
• Dull poet on the rise
• Gray and dreary
• Visually blah
• Dreary and dull
• Dull poet from the East
• Gloomy linesman sent back