Disappointed – with, at, in, by, about

Hi,

He's disappointed with his daughter.

Regards

Hi,

This is an abstract from Longman Contemporary Dictionary and I think it's clear enough:

Disappointed:

unhappy because something you hoped for did not happen, or because someone or something was not as good as you expected:

E.g:Dad seemed more disappointed than angry. disappointed customers

Disappointed at/with/about

Thank for your replies.

The problem is that a dictionary gives only examples as you quoted.

I still don't know if all these pronouns for "disappointed" can be used interchangeably in all cases or each pronoun has to be used in a specyfic situation.

for example:

They are disappointed at the result. Can I use with, in, by, about here?
Are there any rules?

They are disappointed at the result. Can I use with, in, by, about here?- All sound reasonable to me except perhaps 'in'. There are no rules, really, beyond what Iman has posted. It is more a matter of collocation.

PS: One very relevant quote from the M-W Dictionary of English Usage:

"When disappointed is used with a preposition in contemporary writing, it may t

Thank you very much Mr Micawber.

I'm asking because in Polish usually there is one option. You can use sometimes a different preposition but usually the meaning of the sentence also changes a little. Is the same in English?

Sometimes, but not here.

Which is correct: I am so disappointed at you or I am so disappointed in you