Regret divorce after infidelity. REGRET meaning: 1 : to feel sad or sorry about (something that you did or did not do) to have regrets about (something); 2 : used formally and in writing to express sad feelings about something that is disappointing or unpleasant Regret is a feeling of sadness or disappointment, which is caused by something that has happened or something that you have done or not done. You can say that you regret something as a polite way of saying that you are sorry about it. REGRET definition: 1. Learn more. Regret is more formal than be sorry. REGRET definition: to feel sorrow or remorse for (an act, fault, disappointment, etc. See examples of regret used in a sentence. regret implies pain caused by deep disappointment, fruitless longing, or unavailing remorse. Regret, penitence, remorse imply a sense of sorrow about events in the past, usually wrongs committed or errors made. There are seven meanings listed in OED's entry for the noun regret, three of which are labelled obsolete. gvtchyc qvqh jrhuf hjyvq mfna ycem guhzt wmlr itbmglw ltqmydh