Having satisfied himself that there was no risk of immediate discovery he went back to the kitchen with a lighter step, and found Mattie disconsolately removing the last scraps of pickle from the floor.
There are no more uses of "disconsolate" in the book.
Show samples from other sources
And each time, when she failed to follow, he returned to the lookout knoll to sit disconsolately for a few minutes before trying again.
Farley Mowat -- Never Cry Wolf
No words were sold, the market place closed down, and the people grew poor and disconsolate.