Related Clues:

• Listlessness
• Lethargy
• Speech problem
• Ho-hum feeling
• Depression
• The blahs
• Down-in-the-dumps feeling, with 'the'
• Despondency, with 'the'
• Lassitude
• Cause of yawning
• Boredom
• Monotony
• Utter boredom
• Languor
• Yawn inducer