Related Clues:

• Weariness
• Ho-hum attitude
• Ennui, with 'the'
• Malaise, with 'the'
• Ennui
• Same old same old
• Weary state
• World-weariness
• Yawn-inducing condition
• Ennui (with "the")
• 'Been there, done that' feeling
• Yawner's feeling
• World weariness
• Blue state
• Lecturer's avoidance, hopefully