adj. 1. having existence or being or actuality; as, much of the beluga caviar existing in the world is found in the Soviet Union and Iran. Opposite of nonexistent. [ Narrower terms: active, alive; extant, surviving ] Also See: extant. Syn. -- existent. [ WordNet 1.5 ] 2. Present. Opposite of absent. [ WordNet 1.5 ] 3. Presently existing; as, the existing system. [ WordNet 1.5 ] |