How to Say "bitter" in Spanish
The most common Spanish word for “bitter” is “amargo” — use this word for the literal taste of something that is not sweet, or for strong negative emotions like disappointment or regret..
amargo
/ah-MAR-go//aˈmaɾɣo/

Examples
No me gusta el café amargo; prefiero ponerle azúcar.
I don't like bitter coffee; I prefer to put sugar in it.
El chocolate puro es más amargo que el chocolate con leche.
Pure chocolate is more bitter than milk chocolate.
Esta medicina tiene un sabor muy amargo.
This medicine has a very bitter taste.
Fue una amarga decepción para todo el equipo.
It was a bitter disappointment for the whole team.
Matching the Gender
Remember that 'amargo' must match the person or thing it describes. Use 'amargo' for masculine words (el café amargo) and 'amarga' for feminine words (la medicina amarga).
Ser vs. Estar with Taste
Use 'ser' if the food is naturally bitter (el chocolate es amargo). Use 'estar' if it tastes bitter right now because of how it was prepared (el café está amargo because there is no sugar).
Emphasis with Position
When used figuratively for emotions, 'amargo' can sometimes go before the noun to sound more poetic or emphasize the feeling (una amarga verdad).
Bitter vs. Sour
Mistake: “Using 'amargo' to describe a lemon.”
Correction: Lemons are 'agrios' (sour) or 'ácidos' (acidic). Use 'amargo' for things like coffee, tonic water, or dark chocolate.
Describing People
Mistake: “Saying 'Él es amargo' to mean someone is grumpy.”
Correction: While understood, it is much more natural to say 'Él es un amargado' (He is a bitter/resentful person).
amargado
/ah-mar-GAH-doh//amaɾˈɡaðo/

Examples
No seas tan amargado, ¡disfruta de la fiesta!
Don't be such a sourpuss, enjoy the party!
Se siente amargado porque nunca cumplió sus sueños.
He feels bitter because he never fulfilled his dreams.
Su divorcio lo dejó muy amargado.
His divorce left him very resentful.
Choosing Between Ser and Estar
Use 'ser' if the person is generally bitter as a personality trait. Use 'estar' if they are feeling bitter right now because of a specific event.
Matching the Person
The ending must change to match the person you are describing: 'amargado' (man), 'amargada' (woman), 'amargados' (men/mixed group), or 'amargadas' (women).
Don't confuse with 'amargo'
Mistake: “Este café está muy amargado.”
Correction: Este café está muy amargo. Use 'amargo' for food/flavors and 'amargado' for people's feelings.
resentido
/reh-sen-TEE-doh//resenˈtiðo/

Examples
Él está resentido con su jefe por no darle el ascenso.
He is resentful toward his boss for not giving him the promotion.
No seas tan resentida, intenta perdonarla.
Don't be so bitter, try to forgive her.
Su tono resentido reveló que todavía le dolía la ruptura.
His resentful tone revealed that the breakup still hurt him.
Using 'Estar' for feelings
Since being resentful is considered a state or a feeling rather than a permanent personality trait, you almost always use it with 'estar' instead of 'ser'.
Don't confuse with 'angry'
Mistake: “Using 'resentido' to mean 'angry right now'.”
Correction: Use 'enojado' for immediate anger. Use 'resentido' for long-term bitterness about something that happened a while ago.
agrio
/ah-gree-oh//ˈa.ɣɾjo/

Examples
Desde que perdió su trabajo, tiene un carácter muy agrio.
Since he lost his job, he has a very bitter personality.
Me dio una respuesta agria cuando le pedí ayuda.
She gave me a harsh response when I asked for help.
Metaphorical Use
Just like in English, words for taste are used to describe personalities. A 'sour' person is someone who is unfriendly or grumpy.
Don't use for 'sad'
Mistake: “Estoy agrio porque mi gato murió.”
Correction: Estoy triste porque mi gato murió.
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'.
Taste vs. Personality
Related Translations
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