negative conscious and emotional reaction to personal past acts and behaviours
Regret is the emotion of wishing one had made a different decision in the past, because the effect of the decision were not good.
Regret is related to a missed opportunity. Its intensity changes over time after the decision.
- McConnell, Terrance (2018), "Moral Dilemmas", in Zalta, Edward N. (ed.), The Stanford Encyclopedia of Philosophy (Fall 2018 ed.), Metaphysics Research Lab, Stanford University, retrieved 2019-07-03