How to Say "hellish" in Spanish
The Spanish word for “hellish” is “infernal” — B1 level. This is a very common word in everyday Spanish.

Examples
Hace un calor infernal hoy.
It's unbearably hot today.
Había un ruido infernal en la calle.
There was a hellish noise in the street.
El tráfico de la ciudad es simplemente infernal.
The city traffic is simply unbearable.
One size fits all
Unlike many Spanish describing words, 'infernal' doesn't change for boys or girls. You can use it with 'el calor' (masculine) or 'la bulla' (feminine) without changing the ending.
Placement for emphasis
Usually, you put this word after the thing you are describing. If you put it before (e.g., 'un infernal ruido'), it sounds more dramatic or poetic.
Adding an 'o' or 'a'
Mistake: “Hace un calor infernalo.”
Correction: Say 'calor infernal'. Words ending in 'l' usually don't need a vowel at the end to show gender.
Related Translations
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