Antonyms are the opposite of a given word, in this case, the word is "curtnesses." Curt refers to being blunt or short, so the antonyms for "curtnesses" would be words that suggest being prolonged, polite, and courteous. Some antonyms of "curtnesses" are elegance, gracefulness, delicateness, consideration, friendliness, amiability, gentleness, and cordiality. These words imply warmth and kindness instead of being brusque or rude. By using antonyms, we can better understand the meaning of a word and its contrasting meanings. Antonyms provide a useful tool for writers, speakers, and readers, helping them to better articulate their ideas and convey meaning.