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

Examples
El huracán tuvo un efecto devastador en la costa.
The hurricane had a devastating effect on the coast.
Las armas modernas tienen un poder devastador.
Modern weapons have a devastating power.
Fue el incendio más devastador de la década.
It was the most devastating fire of the decade.
Making it Feminine
When describing a feminine noun, you must add an 'a' at the end to make it 'devastadora'.
Where to Put the Word
This word usually comes after the person or thing it is describing (e.g., 'un efecto devastador').
Confusion with 'Devastado'
Mistake: “Estoy muy devastador.”
Correction: Estoy muy devastado. Use 'devastador' for things that CAUSE destruction, and 'devastado' for how YOU feel (destroyed/heartbroken).
Related Translations
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