resentive
/ˈrɛz.ɛn.tɪv/Definitions
1. adjective
having or showing a strong feeling of resentment
“She was resentive towards the injustice she faced, which motivated her to fight for change.”
2. noun
a feeling of resentment, often resulting in a strong reaction
“Her resentive attitude towards the new policy made it difficult for her to collaborate with her colleagues.”