Noun 1. soft-finned mainly freshwater fishes typically having toothless jaws and cycloid scales (synonym) cyprinid fish (hypernym) cypriniform fish (hyponym) carp (member-holonym) Cyprinidae, family Cyprinidae Adjective 1. of or relating to members of fish family Cyprinidae (synonym) cyprinoid (pertainym) Cyprinidae, family Cyprinidae