undefeated
1. [ adjective ] victorious
Examples:

"undefeated in battle" "an undefeated team"

Related terms: defeated triumphant unbeaten unbowed conquering successful
Similar spelling:   undefended
  undepicted
  uneatable
  undefined
  undefiled
  undeviating
  undefinable
  unadapted
  undeveloped
  undefendable
  undeferential