Unconsiderate is a word that refers to someone who is thoughtless or inconsiderate. Antonyms for this word include considerate, attentive, thoughtful, tactful, and courteous. A considerate person is one who thinks about the feelings and needs of others before acting. They show empathy and kindness towards those around them, and make an effort to ensure that everyone is comfortable and happy. An attentive person is someone who pays close attention to the needs of others, listening carefully to what they have to say and responding with care and understanding. A thoughtful person is one who takes the time to think about their actions and how they might affect those around them, while a tactful person is skilled in navigating social situations in a considerate and respectful way.