ANTITOXIN Antonyms There are 3 antonyms of the word antitoxin. (opposite meanings)Did you mean?Definition of ANTITOXINAlso try opposite words for..antitoxicantitoxinsBest Opposite Words For ANTITOXINTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1poisonverb, nounv, n2toxinnounn3venomverb, nounv, n Alternatives for POISON Words (26)toxinvenombalefuldangerousdeadlydeleteriousdestructiveharmfulinjuriouslethalmalevolentmalignmalignantnoxiouspernicioustoxicvirulentbanecontaminantcontaminatecorruptenvenompollutantpollutetainttoxicantPhrases (1)poisonous substanceOpposite words for poison Alternatives for VENOM Words (4)malicemaliciousnessspitespitefulnessOpposite words for venom