"A blot on one's escutcheon" is a phrase that refers to a tarnish on one's reputation or character. Synonyms for this phrase include blemish, stain, disgrace, disgracefulness, dishonor, disrepute, infamy, shame, ignominy, and opprobrium. A blemish or stain often refers to a physical mark on something, but in this context, it pertains to a negative perception of someone's character. Disgrace is another term used to describe a loss of respect or honor. Infamy and ignominy refer to a state of being famous for something negative or shameful. Opprobrium is a term for scorn or harsh criticism directed towards someone who has done something wrong or dishonorable.