How to Say "wistful" in Spanish
The Spanish word for “wistful” is “melancólico” — B1 level.

Examples
Hoy me siento un poco melancólico por la lluvia.
I feel a bit melancholy today because of the rain.
Esa canción tiene un ritmo melancólico.
That song has a melancholy rhythm.
Su mirada melancólica revelaba que extrañaba su casa.
His melancholy gaze revealed that he missed his home.
Matching the ending
Since this is an adjective, the ending must match what you are describing. Use 'melancólico' for masculine things (un libro melancólico) and 'melancólica' for feminine things (una tarde melancólica).
Word placement
In Spanish, this word usually comes after the person or thing it describes. For example, 'un hombre melancólico' (a melancholy man).
Using 'estar' vs 'ser'
Mistake: “Using only 'ser' to describe a temporary mood.”
Correction: Use 'estar' (Estoy melancólico) if it is a temporary mood, and 'ser' (Soy melancólico) if it is a permanent personality trait.
Related Translations
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