ARCHOSAUR Antonyms There are 5 antonyms of the word archosaur. (opposite meanings)Did you mean?Definition of ARCHOSAURSynonyms of ARCHOSAURBest Opposite Words For ARCHOSAURTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1amphibianverb, noun, adjectivev, n, adj2birdnounn3mammalnounn4marsupialnounn5reptilenounn Alternatives for AMPHIBIAN Words (6)amphibianfrognewtsalamandertoadamphibiousPhrases (2)amphibious aircraftamphibious vehicleOpposite words for amphibian Alternatives for BIRD Words (26)chickdamefowlavianbirdiebirdwatchblokeboobroadchapdollgirlguyhisshootlassporridgeraspberryrazzrazzingshuttleshuttlecockskirtsnortstretchtimePhrases (1)bronx cheerOpposite words for bird Alternatives for MAMMAL Words (1)mammalianOpposite words for mammal Alternatives for MARSUPIAL Words (9)bandicootbilbykangarookoalanumbatpossumwallabywombatquokkaPhrases (1)pouched mammalOpposite words for marsupial Alternatives for REPTILE Words (13)alligatorchameleoncrocodiledragongeckoiguanalizardsnaketurtlecrawlingcreepingreptilianreptiliousOpposite words for reptile