Related Clues:

• Dullsville
• Dull
• Like a toothache
• Unpleasant
• Boring
• Thoroughly unpleasant
• Far from enjoyable
• Zero laughs
• Party-pooperish
• Like a party pooper
• Too serious
• Like a wet blanket, so to speak
• Like wet blankets
• Quite a drag
• Like a stick-in-the-mud