Senility/səˈnɪləti/ Definition 1 of 2Pro Tip 1/3Negative Connotation Senility often carries a sad or negative feeling, reflecting the challenges of aging. Avoid joking about senility; it's a serious issue. Pro Tip 2/3Context Specificity Use 'senility' mostly in medical or personal discussions about elderly health. The doctor discussed the patient's senility with her family. Pro Tip 3/3Not Interchangeable 'Senility' refers to aging-related decline, not all mental impairments. Confusing senility with depression is a common mistake.