NON-POISONOUS Antonyms There are 5 antonyms of the word non-poisonous. (opposite meanings)Did you mean?Definition of NON-POISONOUSSynonyms of NON-POISONOUSAlso try opposite words for..unpoisonnonpoisonousBest Opposite Words For NON-POISONOUSTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1poisonousadjectiveadj2toxicverb, adjectivev, adj3venomousadjectiveadj4harmfuladjectiveadj5lethaladjectiveadj Alternatives for POISONOUS Words (5)venomoustoxicpoisonedtoxicantviciousOpposite words for poisonous Alternatives for TOXIC Words (15)poisonousvenomousdamagingdangerousdeadlydeleteriousdetrimentalharmfulhazardousinjuriouslethalmalignnoxiousperniciousvirulentOpposite words for toxic Alternatives for VENOMOUS Words (14)poisonousdeadlynoxioustoxicvirulentbalefulharmfulhazardouslethalmalevolentmaliciousmalignperniciousviciousOpposite words for venomous Alternatives for HARMFUL Words (10)injuriousadversedamagingdetrimentalhurtfulnegativenoxiousperniciousprejudicialtoxicOpposite words for harmful Alternatives for LETHAL Words (9)deadlydangerousdestructivefatalharmfullethalmortalpoisonoustoxicOpposite words for lethal