1. An experienced person who has been through many battles; someone who has given long service
   "The oldtimer shared his wisdom with the new recruits";
   - veteran, old-timer [informal], old hand, warhorse, old stager, stager
    
2. An elderly man or woman
   "The oldtimer regaled us with stories from his youth";
   - old-timer [informal], gaffer [informal], old geezer [informal], antique [informal]

Derived forms: oldtimers, old-timers

Type of: expert, graybeard [US], greybeard [Brit, Cdn], Methuselah, old man

Encyclopedia: Oldtimer