misappearance noun2 •A false appearance; An instance of seeming as other than what is the true form; an illusion.Certain priests, whom he describes as conversing very learnedly together, appeared to the children, who were at some distance, like dead horses; and many the like misappearances. — 1883 •Something that appears in a way that it should not.We know of no set of men who are more quick to detect any misappearance than the force having charge of the condition of the yard. — 1903 formsmisappearances