1. Mentally or physically infirm with age
   - doddering, doddery, gaga

See also: old, senility

Encyclopedia: Senile

• energize
• energizer
• energizing
• energy
• Energy Department
• energy level
• energy of activation
• Energy Secretary
• energy state
• energy unit
• energy-absorbing
• energy-releasing
• energy-storing
• enervate
• enervated
• enervating
• enervation
• Enesco
• Enets
• enfant terrible
• enfeeble
• enfeeblement
• enfeebling
• enfeoff
• enfeoffment