• Prolonged absence
• Prolonged bachelorhood
• Prolonged cogitation
• Prolonged detainment
• Prolonged downturn
• Prolonged durance
• Prolonged estrus
• Prolonged exposure
• Prolonged firefight
• Prolonged gunfight
• Prolonged haggling
• Prolonged heatwave
• Prolonged hiatus
• Prolonged hospitalization
• Prolonged idling
• Prolonged immobility
• Prolonged inanimation
• Prolonged lucubration
• Prolonged nonuse
• Prolonged obdormition