1. to deprive of vitality, energy, or life force; to weaken or make less vigorous
Usage: third person singular present tense of ‘devitalize’

Examples

• The long illness devitalizes her immune system.
• Poor nutrition devitalizes the body over time.
• The monotonous routine devitalizes his creativity.
• Stress devitalizes both mind and body.
• The harsh treatment devitalizes the soil.
• Lack of sleep devitalizes her performance at work.