terrible, appalling
La destruction de l'environnement est effroyable.
The destruction of the environment is appalling.
Je viens de passer l'heure la plus effroyable !
I’ve just had the most horrifying hour!
— Santa Claus Is a Stinker (1982)
A dreadful hurry.
Ce fut une effroyable affaire.
It was a terrible affair.
Tuer sa mère est le crime le plus effroyable.
Killing one's mother is the most horrific crime.
— Psychose (1960)
Je pense que tu as commis une effroyable erreur.
I think you made a terrible mistake.