Related Clues:

• Dull and lifeless
• Recurring feeling
• Snooze-producing
• Lacking punch
• Pretty boring
• When tripled, ''et cetera''
• Word from the French for ''to vex''
• It features low interest
• Boring, slangily
• Eliciting a "So what?"
• When said three times, meaningless chatter
• Word for feeling lethargic
• Literally, 'already seen'
• "Been there, done that" feeling
• "This seems familiar" feeling