disgruntle
/dɪsˈɡrʌntl̩/
verb
- To make someone unhappy, annoyed, or disappointed, especially because of unfair treatment or unfulfilled expectations.
- The new policy disgruntled the students, who felt their opinions were ignored.
- The company's decision to cut bonuses disgruntled many employees.
- Long wait times at the restaurant disgruntled the customers.