a. | 1. | Having the qualities or effects of poison; venomous; baneful; corrupting; noxious. |
Adj. | 1. | poisonous - having the qualities or effects of a poison Synonyms: toxicant |
2. | poisonous - not safe to eat | |
3. | poisonous - marked by deep ill will; deliberately harmful; "a malevolent lie"; "poisonous hate...in his eyes"- Ernest Hemingway; "venomous criticism"; "vicious gossip" |