From Longman Dictionary of Contemporary Englishfeel cheatedfeel cheatedDISAPPOINTEDto feel that you have been treated wrongly or unfairly and have not got what you deserve She felt cheated and used. → cheat
Examples from the Corpus
feel cheated• But they do, and then feel cheated.• If you do, your readers are likely to feel cheated.• Magnanimously, I jumped in and offered to pay the discount difference so that my dining friend would not feel cheated.• Sherman was relieved for a moment, but then he felt cheated.• Nor is she the only one who feels cheated by Death Row.• Many of the workers feel cheated by not getting their bonuses.• It revealed Docherty to be a witty, compulsive and outspoken man who feels cheated by the past.• Fear of litigation by shareholders who felt cheated quickly established this practice after some early abuses. 