/ Thesaurus / O Synonyms of ostariophysi Find synonyms for: Noun1. Ostariophysi, order Ostariophysi, soft-finned fish, malacopterygianusage: in some classifications considered a superorder comprising the Cypriniformes and the SiluriformesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language