The word "bluntness" refers to a lack of sharpness or refinement. Therefore, antonyms for "bluntness" would include words that describe the opposite characteristics or traits. Some of these antonyms may include words like "sharpness," "precision," or "clarity." Others may include words like "refinement," "elegance," or "sophistication." While "bluntness" may describe a person's lack of tact or delicacy, its antonyms may describe someone who is gracious, tactful or very delicate. The opposite of "bluntnesses" are quite often found in the people who exemplify them - those who are refined, sharp, precise or sophisticated in their approach, conduct, and interactions with others.