chagrin - Wiktionary
Distress of mind caused by a failure of aims or plans, want of appreciation, mistakes etc; vexation or mortification. Synonyms: disquiet, fretfulness, mortification, peevishness, vexation 1876, Louisa May Alcott, Rose In Bloom, ch. 8: [H]e alone knew how deep was the deluded man's chagrin at the failure of the little plot which he fancied was prospering ...
DA: 73 PA: 66 MOZ Rank: 63