preexistent
1. [ adjective ] existing previously or before something
Synonyms: pre-existing preexisting pre-existent
Examples:

"variations on pre-existent musical themes"

Related terms: antecedent
2. [ adjective ] existing previously or before something
Related terms: antecedent
Similar spelling:   pre-existent
  preexist
  preexistence
  preexisting
  pre-existing
  preciosity
  preciseness
  Prezioso
  precious