Shamefastness is a term that describes a feeling of shame or embarrassment. If that word is unfamiliar to you, there are several synonyms that you can use as alternative ways to express the same sentiment. Some synonyms for shamefastness include bashfulness, timidity, modesty, shyness, or diffidence. Each of these words denotes a level of hesitancy or discomfort in social situations that leads to feelings of shame or embarrassment. It's important to note that these words are not interchangeable and may have different connotations, so it's important to choose the right one depending on the context. With these synonyms, you can convey your ideas and feelings more precisely and clearly.