I was disappointed TO hear my football team lost. I was disappointed WITH their performance. I was disappointed AT the reaction of the spectators. I was disappointed BY everything and everyone. I was disappointed IN many ways. Oh dear!

I am very dissapointed with my work. . I am very dissapointed at-with my results. . I am very dissapoited with managments ruling. . I was very dissapointed at-with the football results. . Although my son tried very hard, I was dissapointed with his finish. I know she tried her best, but she was dissapointed whith her result Good luck

Hello Frederica, according to the online Cambridge dictionnary, you can also say : "I'm disppointed to hear that the party has been canccelled". So you can use disappointed TO + verb. Hope it helps ! bye

disappointed at someone or something disappointed in someone or something

I've mentioned the most common forms but OVER is sometimes used too. I was disappointed OVER the result. It is NOT common. But it is used sometimes.