(1)恨めしいと感じる、あるいは憤然たる思いをする
(2)feel bitter or indignant about; "She resents being paid less than her co-workers"
さらに詳しく
(1)(通常、悪行に関しての)深い後悔
(2)a feeling of deep regret (usually for some misdeed)
(1)遺憾に感じる
(2)罪悪感を感じる悔恨する
(3)悔恨を感じる
(4)feel remorse for; feel sorry for; be contrite about