(n.) The humbling of a person by act or words, especially by a retort or a reproof; the retort or the reproof which has such effect.

bump bust casting down comedown debasement deflation degradation degrading demotion depluming descent disgrace disgrading displuming downgrading dump embarrassment hangdog look humbled pride humbling humiliation letdown mortification put-down reduction self-abasement self-abnegation self-diminishment setdown shame shamefacedness shamefastness stripping of rank