When you were worth something more to someone once; but you managed to find a way to make them change their mind. Used correctly, possibly one of the most painful words in the world. Suggests giving up, no longer caring. Can be used to infer "we can never go back."
I did love you. But now, I don't know. You never did what you said you were going to do. I waited for you, but.. you know, it's just.. disappointing, I guess. That's all.
by Lord Armand Banana III August 20, 2005
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adj - not up to expectations; "a disappointing performance from one who had seemed so promising" Generally used by posh blokes with long hair and rippled six-packs. Occasionally prefixed by the word 'extremely' to express a greater level of concern over his hopes, desires, intentions or expectations being dashed.
His retiring foe Shrinks from the wound, and disappoints the blow - Addison

That treble 20 has to go down as extremely disappointing - Cox
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Napoleon Marquez; World of Warcraft: The Burning Crusade.
What? Napoleon Marquez didn't get my play and charge kit? How disappointing. :(
by Lunarblade January 18, 2007
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What my mother calls me when I get a B on my geometry test before she makes me sleep outside
Mom: Robert! Get in here! You got a B? What a disappointment to this family. Go outside and sleep in the cold.

*I proceed to grab my teddy bear and Bible and go outside to appease my crazed mother*

*I also slap myself repeatively while self-scolding myself for my sins against my mother*
by xX_Chromosones_Xx December 4, 2018
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