Related Clues:

• Days-old
• Like a tough cookie?
• Like dated food
• Like day-old donuts
• Hard, as bread
• Like old jokes
• Like a sewer
• Estate-sale offering
• Flat, as cola
• Object of many an appraisal
• Stuffy, as air
• Like dungeons, typically
• Lacking originality
• Like musty cellars
• In need of an update