Tactlessnesses, meaning the lack of sensitivity or having poor social skills, can be described in antonyms like empathy, diplomacy, thoughtfulness, and sensitivity. Empathy involves having a deep understanding and awareness of another person's feelings, whereas tactlessnesses show a lack of concern for others' emotions. Diplomacy refers to managing conflicts or negotiations with sensitivity and care, while tactlessnesses involve being blunt and insensitive in communicating. Thoughtfulness entails considering others' feelings in one's words and actions, while tactlessnesses disregard the impact of their words and actions on others. Finally, sensitivity involves being responsive to the needs and feelings of others, whereas tactlessnesses demonstrate the opposite.