The term "most disgracious" implies extreme rudeness, discourtesy, or lack of manners. Its antonyms would be words that signify politeness, grace, decorum, respect, and good manners. Some antonyms for "most disgracious" are courteous, polite, respectful, considerate, gracious, genteel, refined, tactful, polished, and civil. These adjectives suggest a behavior that is characterized by kindness, civility, and good breeding. The use of antonyms for "most disgracious" is a great way to describe the opposite of a rude or discourteous action, behavior, or attitude, and to convey a positive and polite message.