cyprinid fish cyp·ri·nid·fish uncommon noun 1. soft-finned mainly freshwater fishes typically having toothless jaws and cycloid scales Synonymscyprinidcyprinid fish Related words Broader terms cypriniform fish Narrower terms carptenchdacechubshinerroachruddminnow Parts Cyprinidae WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.