We found 4 dictionaries that define the word oldtimers:

General (3 matching dictionaries)

1. oldtimers: Vocabulary.com
2. Oldtimers, oldtimers: Wordnik
3. oldtimers: Wiktionary

Slang (1 matching dictionary)

4. oldtimers: Urban Dictionary

(Note: See oldtimer as well.)

Definitions from Wiktionary (oldtimer) ▸ noun:  An elderly person. ▸ noun:  A veteran. ▸ noun:  A vintage car. ▸ Also see oldtimer Opposite: newcomers, rookies, beginners ▸ Words similar to oldtimers ▸ Usage examples for oldtimers ▸ Idioms related to oldtimers ▸ Wikipedia articles (New!) ▸ Popular adjectives describing oldtimers ▸ Words that often appear near oldtimers ▸ Rhymes of oldtimers ▸ Invented words related to oldtimers