Related Clues:

• See 47-Across
• Depression
• Down-in-the-dumps feeling, with 'the'
• Despondency, with 'the'
• Name on a dictionary
• Ennui, with 'the'
• Tedium
• Malaise, with 'the'
• Ennui
• Depressed mood
• Panic
• Ennui (with "the")
• Blue state
• Doldrums
• Blue state?