Related Clues:

• Yawn producer
• 'The scourge of the fashionable world': Schopenhauer
• Result of being in a rut
• Lack of excitement
• Lack of interest
• Yawn-inducing state
• Feeling of boredom
• Listless feeling
• Ho-hum state
• Dog-tired feeling
• Blah feeling
• Cause of some sighs
• 'I'm so bored' feeling
• Bored feeling
• Deep boredom