Related Clues:

• Subject of Mach's principle
• Weariness
• Ho-hum attitude
• Inactiveness
• Disinclination to change
• Tedium
• Notion about motion
• Drowsy
• Inactivity
• Lack of vigor
• Weary state
• Possible reason to lie in bed all morning
• Stillness
• World-weariness
• Yawn-inducing condition