When we think of the term "nasty look," words like scowl, glare, or sneer may come to mind. However, there are many antonyms that describe the opposite of a nasty look. A friendly smile, a warm gaze, or a cheerful expression can convey positivity and kindness. Other antonyms could include a welcoming grin, a bright countenance, or a pleasant visage. These opposite terms imply a sense of openness and approachability, often making someone feel at ease. In social situations, projecting these positive signals can create a more harmonious and welcoming atmosphere. Remember, the words we use and actions we take can create a lasting impact on those around us.