IMPLACENTAL Antonyms There are 9 antonyms of the word implacental. (opposite meanings)Did you mean?Definition of IMPLACENTALBest Opposite Words For IMPLACENTALTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1allantoicadjectiveadj2amnioticadjectiveadj3chorionicadjectiveadj4eutheriannoun, adjectiven, adj5fetaladjectiveadj6mammalianadjectiveadj7placentaladjectiveadj8umbilicalnoun, adjectiven, adj9viviparousadjectiveadj Alternatives for AMNIOTIC Words (4)embryonicumbilicalamnicamnionicOpposite words for amniotic Alternatives for CHORIONIC Words (1)placentalOpposite words for chorionic Alternatives for EUTHERIAN Words (2)mammalianplacentalPhrases (2)eutherian mammalplacental mammalOpposite words for eutherian Alternatives for FETAL Words (4)embryonicprenatalunbornfoetalOpposite words for fetal Alternatives for MAMMALIAN Words (9)animalcreatureeutherianlive-bearermarsupialvertebratewarm-bloodedmonodelphianmammalOpposite words for mammalian Alternatives for PLACENTAL Words (3)eutherianmammalianviviparousPhrases (2)eutherian mammalplacental mammalOpposite words for placental