1. a physical or mental weakness, illness, or disability
2. the condition of being weak or frail

Examples

• Despite his age and infirmity, he continued to work in his garden.
• The nursing home cared for elderly residents with various infirmities.
• Her physical infirmity did not diminish her sharp intellect.
• The doctor explained that the infirmity was temporary and would heal.
• He accepted his infirmities as a natural part of aging.
• The charity provides support for people with mental infirmities.