← BackshareGuessnonpoisonous/nɑnˈpɔɪzənəs/adjectiveNot containing or producing poison; safe to touch or eat.The berries in this forest are nonpoisonous and can be eaten.The snake is nonpoisonous, so there is no need to worry.We chose nonpoisonous plants for the school garden.SynonymsharmlesssafeedibleAntonymspoisonoustoxic