The term un-tactful refers to someone who is not skilled in dealing with delicate situations and lacks the ability to understand other people's feelings. The antonyms of un-tactful are words that describe a person who is thoughtful, considerate, subtle, and diplomatic. Some of the best antonyms for un-tactful include tactful, diplomatic, courteous, polite, suave, refined, sensitive, and understanding. An individual who is tactful is highly respected for their ability to manage difficult situations without causing offense, while diplomatic individuals are skilled at finding common ground and resolving conflicts peacefully. In essence, being tactful and diplomatic requires empathy, good communication skills, and a sensitivity towards others' needs and emotions.