resentful in a sentence

Definition

Resentful: feeling or expressing bitterness or indignation at having been treated unfairly.

She felt resentful when she realized her hard work had gone unnoticed.
His resentful attitude made it difficult for the team to collaborate effectively.
After years of being overlooked, he grew increasingly resentful of his colleagues' promotions.
The resentful tone in her voice revealed her disappointment with the decision.
Despite her success, she couldn't shake off the resentful feelings towards her former mentor.