Synonyms for poisonous
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- 1. poisonous, toxicant, toxic (vs. nontoxic)
- usage: having the qualities or effects of a poison
- 2. poisonous, inedible (vs. edible), uneatable
- usage: not safe to eat
- 3. poisonous, venomous, vicious, malicious (vs. unmalicious)
- usage: marked by deep ill will; deliberately harmful; "poisonous hate"; "venomous criticism"; "vicious gossip"