Related Clues:

• Not colorful
• Olive __: uniform color
• Not at all interesting
• Boring, colorwise
• Sans verve
• Far from robust
• Puny
• *See 61-Across
• Borrrring
• Lacking in spirit
• Hardly hearty
• Dull and lifeless
• Not at all bright
• Snooze-producing
• Lacking punch