triste

Se quedo muy triste cuando supo que su mejor amigo se iba a vivir lejos.

He became very sad when he found out his best friend was moving far away.

Es triste ver como se abandona ese edificio tan histórico del centro.

It is sad to see that historic building in the centre being left to decay.

Me pongo triste cada vez que escucho esa canción tan emotiva.

I become sad every time I hear that very moving song.