How to Say "boredom" in Spanish
The Spanish word for “boredom” is “aburrimiento” — A2 level. This is a very common word in everyday Spanish.

Examples
Siento mucho aburrimiento cuando no tengo nada que hacer.
I feel a lot of boredom when I have nothing to do.
Para combatir el aburrimiento, Juan decidió leer un libro.
To fight boredom, Juan decided to read a book.
El aburrimiento en el trabajo puede ser muy frustrante.
Boredom at work can be very frustrating.
Using it with 'Sentir' vs 'Estar'
Use 'sentir' (to feel) with this word because it's a noun. If you want to use 'estar' (to be), you must use the adjective form 'aburrido' instead.
Masculine Gender
This word is masculine, so always use it with 'el', 'un', 'mucho', or 'este'.
Confusing the noun with the adjective
Mistake: “Estoy aburrimiento.”
Correction: Estoy aburrido (I am bored) or Siento aburrimiento (I feel boredom). You cannot 'be' the noun itself.
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