disgruntled
/dɪsˈɡɹʌnt(ə)ld/ adjective C1- In a dissatisfied, frustrated, or upset mood; in a bad temper or ill humour. · disgruntled employees preparing to strike over the lack of progress in talks with their employer on pay and conditions
Learn disgruntled in real texts
With a free account, hover any word in the library for its meaning, hear it read aloud, save words for review timed to your memory, and see how much of each book you already know.