How to Say "deranged" in Spanish
The Spanish word for “deranged” is “perturbado” — B2 level.

Examples
Después de ver esa película de terror, me quedé un poco perturbado.
After watching that horror movie, I felt a bit unsettled.
El hombre parecía perturbado y hablaba solo en la calle.
The man seemed disturbed and was talking to himself on the street.
Su pasado traumático lo dejó emocionalmente perturbado.
His traumatic past left him emotionally disturbed.
Adjective Agreement
Since this is an adjective, you must change the ending to match the person: 'perturbado' for a man, 'perturbada' for a woman, and 'perturbados/as' for groups.
Using with 'estar'
We almost always use this with 'estar' because it describes a state or a feeling rather than a permanent personality trait.
Disturbed vs. Annoyed
Mistake: “Using 'perturbado' when you just mean you are annoyed.”
Correction: Use 'molesto' for being annoyed. 'Perturbado' is much stronger and usually refers to mental or deep emotional distress.
Related Translations
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