How to Say "low-spirited" in Spanish
The Spanish word for “low-spirited” is “deprimido” — B1 level. This is a very common word in everyday Spanish.

Examples
Después de la noticia, Juan estuvo deprimido por semanas.
After the news, Juan was depressed for weeks.
Si te sientes deprimida, es importante buscar ayuda.
If you feel depressed, it's important to seek help.
No es que esté deprimido, solo estoy cansado.
It's not that I'm down, I'm just tired.
Adjective Agreement is Key
Since this is an adjective, you must make sure it matches the person you are describing: 'Estoy deprimido' (if you are male) or 'Estamos deprimidas' (if the group is all female).
Use with 'Estar'
You almost always use 'deprimido' with the verb 'estar' because it describes a temporary (or changing) emotional state, not a permanent characteristic.
Using 'Ser'
Mistake: “Soy deprimido.”
Correction: Estoy deprimido. Using 'ser' (Soy) would suggest that being depressed is a defining, permanent part of your personality, which is generally not the intended meaning.
Related Translations
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