Synonyms & related words for poisonous

Find synonyms, related words, and the definition of poisonous — including venomous, toxicant, toxic, poison, noxious, vicious. Dendril is a free visual thesaurus that shows them on an interactive map where stronger matches sit closer to the center — no signup, no ads.

Words related to poisonous

Explore words related to poisonous — words associated with it, words that go with it, and its nearest matches in meaning. Related words include venomousness, toxically, autotoxin, empoison, antiar, nonpoisonous, poisonously, alexipharmic. Click any word to make it the center of the map and keep exploring the web of connections.

Synonyms for poisonous

Common synonyms for poisonous include venomous, toxicant, toxic, poison, noxious, vicious, harmful, deadly — words that share a close meaning. Hover or tap any word on the map for its definition and part of speech.

Where does poisonous come from?

The word poisonous breaks down into one root of Latin origin: the root poison-, from Latin poto (“drink, potion”). Explore each root to see other English words built from the same source.