A feeling often accompanied by sadness, shame, and guilt; regret is when you wish you had done things differently in your past.

"I have many regrets in life, but you were not one of them."

the feeling you feel when you've just done something you wish you haven't. you would give anything just to turn back the hands of time and correct your mistakes, but it's already too late.

I really regret hurting the man that I love.

The most painful thing one can ever experience... The feeling of doing something that you wish you had never done. Feeling regret, you would do anything to turn back the hands of time... Or die to get away...

I dearly regret hurting the people I loved... It's too late now, what's done is done - yet the pain lasts forever.

The most horrible feeling in the world. You can vent anger, control lust, own up for guilt, but you just cannot undo what you've been regretting. Regret is that full time shadow with no limitation of day, light, time, or person. Other than those who just choose to forget, of course, but you can't forget when it's screaming at you in the face every time you feel a smile or a laugh rumbling up your throat. Regret can make you wan to tear your hair out and slice your arteries into slivers of defunct tissue; it can give you self-esteem issues and take away concentration; it can ruin relationships and make you say 'FML' 24x7.