Synonyms for veteran

modified

noun

1. An experienced person

   master, expert, one long in service, sourdough*, old hand*, one of the old guard*, old bird*, old dog*, old timer*.

   Antonyms amateur*, new man, youngster.

2. An experienced soldier

   ex-soldier, seasoned campaigner, ex-service man, reenlisted man, old soldier, war horse*, vet*, ex-G.I*.