ruefulness

1. Sadness associated with some wrong done or some disappointment (synset 107551058)
   "he drank to drown his sorrows"; "he wrote a note expressing his regret"; "to his rue, the error cost him the game"
   is a type of: sadness, unhappiness - emotions experienced when not in a state of well-being
   subtypes:

   • attrition, contriteness, contrition - sorrow for sin arising from fear of damnation
   • compunction, remorse, self-reproach - a feeling of deep regret (usually for some misdeed)
   same as: regret, rue, sorrow

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