Related Clues:

• Like week-old doughnuts
• Unoriginal
• Past the shelf date
• Done to death
• Timeworn
• Like Halloween candy in December
• Like chestnuts
• Like leftover chips
• No longer in style
• Clichéd
• Flat and tasteless
• Vapid
• Far from fresh
• Having lost effervescence
• Trite