poisonous

adjective
UK: /ˈpɔɪzənəs/
US: /ˈpɔɪzənəs/

  1. Containing poison or capable of causing death or illness if taken into the body.

    1. That mushroom is poisonous, don't eat it.
    2. The factory was releasing poisonous chemicals into the river, damaging the ecosystem.

  2. Very unpleasant or malicious.

    1. His poisonous words hurt everyone.
    2. The atmosphere at work had become poisonous after the layoffs were announced.

Synonyms

toxic venomous noxious harmful malicious vicious

Frequently Asked Questions

The word "poisonous" in English means: Containing poison or capable of causing death or illness if taken into the body., Very unpleasant or malicious..

The phonetic transcription of "poisonous" is /ˈpɔɪzənəs/ in British English and /ˈpɔɪzənəs/ in American English. Click the 🔊 button to hear both pronunciations.

Synonyms for "poisonous": toxic, venomous, noxious, harmful, malicious, vicious.

Example usage of "poisonous": "That mushroom is poisonous, don't eat it.". More examples on the page.