I was disappointed
Fiquei decepcionado ao ver que meu bônus era um pouco menor do que eu esperava.
I was disappointed to see that my bonus was a little less than I expected.
Não vou mentir, fiquei decepcionado.
I'm not going to lie, I was disappointed.
Eu fiquei decepcionado com os resultados.
I was disappointed with the results.
Fiquei decepcionado pela sua ausência.
I was disappointed by your absence.
Eu fiquei decepcionado com seu artigo.
I was disappointed with your article.
I wasn't disappointed.