Liff

In 1983, Douglas Adams and John Lloyd published The Meaning Of Liff, the first of three books containing words for things commonly experienced for which there were, oddly, no words.

It did not contain a word for the following experience, however …

That sinking feeling you get when, having drawn a hand of solitaire, all the aces are visible and you just know that’s as far as you’re going to get and there’s no point in playing the rest of the hand.