1. in a way that contains or produces poison; toxically
2. in a malicious, spiteful, or harmful manner
Usage: figurative

Examples

• The snake bit poisonously, injecting venom into its prey.
• The mushrooms grew poisonously in the damp forest floor.
• She spoke poisonously about her former colleague.
• The critic reviewed the play poisonously, attacking every aspect.
• The chemicals reacted poisonously when mixed together.
• He glared poisonously at anyone who disagreed with him.