How to Say "toxic" in Spanish
The most common Spanish word for “toxic” is “tóxico” — use 'tóxico' for things that are literally harmful to health or have a negative emotional impact, like chemicals or a stressful environment..
tóxico
Examples
Ten cuidado, esos productos de limpieza son tóxicos.
Be careful, those cleaning products are toxic.
venenoso
/beh-neh-NOH-soh//be.neˈno.so/

Examples
Este hongo es muy venenoso; no lo toques.
This mushroom is very poisonous; don't touch it.
Algunas serpientes de esta zona son venenosas.
Some snakes in this area are venomous.
El producto de limpieza es venenoso si se ingiere.
The cleaning product is poisonous if swallowed.
Hizo un comentario venenoso sobre mi ropa.
He made a spiteful comment about my clothes.
One word for two English concepts
In English, we say 'venomous' for animals that bite and 'poisonous' for things you eat. In Spanish, 'venenoso' is the all-in-one word for both!
Gender matching
If you are describing something feminine, like 'una araña' (a spider), you must change the ending to 'a': 'una araña venenosa'.
Figurative usage
Just like in English, you can use physical 'poison' words to describe people's behavior. It functions exactly like an adjective describing a person's character.
Using the wrong 'to be'
Mistake: “Está venenoso.”
Correction: Es venenoso. Use 'ser' because being poisonous is a permanent characteristic of that thing.
Intensity
envenenado
/en-ben-en-ah-doh//embenenˈaðo/

Examples
Él tiene un corazón envenenado por el rencor.
He has a heart poisoned by resentment.
Lanzó un comentario envenenado contra su rival.
He made a spiteful comment against his rival.
Figurative description
When describing a person's character, we usually use the word 'corazón' (heart) or 'alma' (soul) together with 'envenenado'.
Tóxico vs. Venenoso vs. Envenenado
Related Translations
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