ICHTHYOSAURIAN Antonyms There are 9 antonyms of the word ichthyosaurian. (opposite meanings)Did you mean?Definition of ICHTHYOSAURIANBest Opposite Words For ICHTHYOSAURIANTop 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, adj2avianadjectiveadj3caninenoun, adjectiven, adj4felinenoun, adjectiven, adj5humannoun, adjectiven, adj6mammalnounn7mammalianadjectiveadj8reptiliannoun, adjectiven, adj9terrestrialadjectiveadj Alternatives for AMPHIBIAN Words (6)amphibianfrognewtsalamandertoadamphibiousPhrases (2)amphibious aircraftamphibious vehicleOpposite words for amphibian Alternatives for AVIAN Words (8)featheredwingedavianbirdflyingfowlfeatheryplumedOpposite words for avian Alternatives for CANINE Words (7)cuspidcaniddogdoglikedogtootheyetoothlaniaryPhrases (2)canine tootheye toothOpposite words for canine Alternatives for FELINE Words (10)catkittenkittymiaowmouserpussycattabbytomcatmoggyfelidOpposite words for feline Alternatives for HUMAN Words (2)manmannishPhrases (1)human beingOpposite words for human Alternatives for MAMMAL Words (1)mammalianOpposite words for mammal Alternatives for MAMMALIAN Words (9)animalcreatureeutherianlive-bearermarsupialvertebratewarm-bloodedmonodelphianmammalOpposite words for mammalian Alternatives for REPTILIAN Words (7)reptilereptiliansaurianscalyserpentinecold-bloodedreptiliousOpposite words for reptilian