The word "uncordiality" refers to a lack of warmth, friendliness or hospitality. Some antonyms for "uncordiality" include warmth, hospitality, kindness, friendliness, affability, geniality, cordiality, and sociability. The opposite of the feeling of hostility is kindness, and when someone is aloof, the opposite is friendliness, which is about making others feel welcome or at ease. Meanwhile, when hospitality is lacking, the antonym is cordiality - when people are warm, welcoming, and friendly to others, they make everyone feel comfortable and at ease. In conclusion, these antonyms are important in creating an environment that promotes trust, communication, and a sense of belonging.