0 If something is unthinkable, it is so strange that you cannot imagine it will ever happen. -- impensabile
Just 30 years ago a non-smoking restaurant would have been unthinkable. Soltanto 30 anni fa sarebbe stato impensabile l’idea di un ristorante dove non si può fumare.
1 too outrageous to be considered -- impensabile
It would be unthinkable to ask him to do that.
