re·sent·ment 
/rɪˈzɛntmənt/ noun
/rɪˈzɛntmənt/ noun [noncount] : a feeling of anger or displeasure about someone or something unfair
▪ She bore/felt/harbored bitter feelings of resentment toward her ex-husband. ▪ He's filled with resentment at/against his boss. ▪ He expressed his resentment of the new policies.
▪ She bore/felt/harbored bitter feelings of resentment toward her ex-husband. ▪ He's filled with resentment at/against his boss. ▪ He expressed his resentment of the new policies.
