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sieso means grump — a common term in Funny Words. Learn how it's used in a real-world example.

📅 Published: December 21, 2025

😆 Funny Words

sieso

noun • /[SYE-so]/

grump

Example:

Qué sieso está hoy.

He’s such a grump today.

🧠 What does sieso mean?

The word 'sieso' is a colloquial and rather blunt Spanish term used to describe a person who is grumpy, unpleasant, or disagreeable. While it can be translated as 'grump' or 'sourpuss', it carries a stronger, more insulting tone. Its impact comes from its literal, anatomical meaning, which is 'anus' or 'rectum'. In everyday speech, however, it is almost exclusively used metaphorically to characterize someone's unfriendly or surly personality. It can function as both a noun ('un sieso') and an adjective ('una persona siesa').

📚 Extra examples

  • No seas sieso y saluda a los vecinos.
    Don't be a grump and say hello to the neighbors.
  • El nuevo jefe es un sieso; nunca sonríe.
    The new boss is a real grump; he never smiles.
  • ¡Qué siesa te has vuelto! Antes eras más divertida.
    You've become so sullen! You used to be more fun.

💡 Did You Know?

The word 'sieso' originates from the Latin 'sessus', which is related to the act of sitting. Its power as an insult comes directly from its anatomical literal meaning. It is a hallmark of the colloquial speech of Andalusia, a region in southern Spain, where it is used frequently and with a certain degree of affection among friends, despite its harshness.

🔁 Synonyms & opposites of "sieso"

Synonyms: antipático, borde, desagradable, gruñón, cascarrabias
Opposites: simpático, agradable, amable, majo, encantador

🔍 See more funny words words

❓ FAQ

How do you say 'grump' in Spanish?
Common words for 'grump' are 'gruñón' or 'cascarrabias'. 'Sieso' is a very strong, informal, and regional alternative, mainly used in Spain.
How do you pronounce 'sieso' in Spanish?
The pronunciation is 'see-EH-so', with the emphasis on the second syllable.
How do you use 'sieso' in a sentence?
'Sieso' is used to describe an unpleasant or grumpy person. For example: 'El camarero era un sieso y nos trató fatal.' (The waiter was a grump and treated us terribly.)
What is the English translation of 'sieso'?
The English translation is 'grump', 'sourpuss', or 'jerk'. The best translation depends on the context, as 'sieso' is quite informal and insulting.
Does 'sieso' change for gender or number?
Yes, it does. It follows standard adjective and noun rules: 'sieso' (masculine singular), 'siesa' (feminine singular), 'siesos' (masculine plural), and 'siesas' (feminine plural).
Is 'sieso' common in everyday Spanish?
It is very common in certain regions of Spain, especially Andalusia. In other parts of the Spanish-speaking world, it is not used and may not be understood.
Does 'sieso' have slang or double meanings?
Yes. Its most common use as 'grump' is slang. Its literal, anatomical meaning is 'anus', which is why the slang usage is considered vulgar and insulting.
Is 'sieso' used differently in Spain vs Latin America?
This term is almost exclusively used in Spain, particularly in the south. In Latin America, its use as an insult for a grumpy person is not common at all.

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