/rɪˈzentmənt/
re·sent·meant
BrE /rɪˈzentmənt/
NAmE /rɪˈzentmənt/
[U, sing.]
a feeling of anger or unhappiness about sth that you think is unfair
to feel/harbour/bear resentment towards/against sb
She could not conceal the deep resentment she felt at the way she had been treated.