The feeling of being disappointing in someone but at the same time feeling proud of them too. Like when a father feels disappointed in their son for wanting him to become an accountant but instead becomes a figure skater.
*Son wins gold medal in figure skating*
Dad: Son, I am disapproud of you!
For when you're proud of someone but also slightly disappointed.
You: Well, since it's not a particularly good thing I'm quite disapproud of you
Friend: Stop using stupid urban dictionary words