Imperdonable (en. Unforgivable)

Translation into Spanish

It was unforgivable, in my opinion and the opinion of many art lovers, especially foreigners, that the Gallery has not been able to accommodate both permanent collections and temporary exhibitions in parallel.
Fue imperdonable, en mi opinión y la de muchos amantes del arte, sobre todo extranjeros, que la galería no haya sido capaz de dar cabida a colecciones permanentes y exposiciones temporales simultáneamente.
Example taken from data source: WikiMatrix_v1
I announce clearly that the occupation of other countries under the pretext of freedom and democracy is an unforgivable crime.
Anuncio claramente que la ocupación de otros países so pretexto de instaurar la libertad y la democracia es un crimen imperdonable.
Example taken from data source: UNPC_v1.0
To deny childhood to children is unforgivable.
Es imperdonable quitarle la infancia a los niños.
Example taken from data source: UNPC_v1.0
However, it would be an unforgivable mistake to identify terrorism with any religion, nationality or culture.
Sin embargo, sería un error imperdonable identificar al terrorismo con una religión, nacionalidad o cultura.
Example taken from data source: MultiUN_v1
To lose momentum now, to fail now, would be unforgivable.
Perder impulso ahora, fracasar ahora, sería imperdonable.
Example taken from data source: UNPC_v1.0
We all have some unforgivable secret.
Todos tenemos algún secreto imperdonable.
Example taken from data source: OpenSubtitles_v2018
Granting them permission to march as conquering heroes through the capital city they so brutally attacked was an unforgivable abandonment of reason.
Otorgarles permiso para marchar como héroes victoriosos por la ciudad capital que atacaron de manera tan brutal fue un abandono de razón imperdonable.
Example taken from data source: GlobalVoices_v2018q4

Synonyms