This is the 1237th most frequent Catalan word.
espectacular
Spectacular; impressive or striking.
In this sentence, 'espectacular' is used as an adjective to describe 'l'espectacle d'anit' (last night's show), emphasizing its outstanding quality or impressiveness.
L'espectacle d'anit va ser espectacular.
Last night's show was spectacular.
Here, 'espectacular' is applied to 'la vista' (the view) as an adjective, highlighting its exceptional and breathtaking appearance.
La vista des del cim de la muntanya era espectacular.
The view from the top of the mountain was spectacular.
In this context, 'espectacular' is used to qualify the experience or moment ('un moment') as extremely impressive and wonderful.