regretfull

In the state of being sorry, repentant, or upset regarding the amount of food one has placed in one's belly, thus filling it with both deliciousness and regret.

Ex: They were all seriously regretfull after consuming enough food at Thanksgiving to feed a small village for a week.

Regretfullness

To have more than regret

Breanna, the regretfullness is going to come back to you