The word "shamefacednesses" is quite unusual and not commonly used in everyday language. It refers to the state of feeling ashamed or embarrassed, often as a result of a wrongdoing or mistake. Some synonyms for shamefacednesses are bashfulness, shyness, timidity, or modesty. These words describe a similar feeling of discomfort or self-consciousness, but with slightly different nuances depending on the context. Other related words include embarrassment, awkwardness, and sheepishness. In any case, acknowledging and owning up to our mistakes is an important part of growth and maturity, and a willingness to express shamefacednesses can lead to greater empathy and connection with others.