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

Examples
Esta fábrica ha estado abandonada por veinte años.
This factory has been abandoned (run-down) for twenty years.
Compramos un coche muy abandonado, pero lo arreglaremos.
We bought a very neglected car, but we will fix it.
Adjective Agreement
Like all Spanish adjectives, 'abandonado' must match the gender (masculine/feminine) and number (singular/plural) of the noun it describes: 'un perro abandonado' (M, S) vs. 'las sillas abandonadas' (F, P).
Misusing Ser vs. Estar
Mistake: “La casa es abandonada.”
Correction: La casa está abandonada. Use 'estar' because 'abandonado' describes the current state or condition of the house, not its permanent identity.
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