There are plenty of synonyms for "improving in outlook" that can be used to describe a positive change or trend. For example, you could say that something is "looking up," "getting better," "brightening up," "trending upwards," "making progress," "showing improvement," or "looking more promising." These phrases are often used to describe things like a company's financial performance, a student's grades, or a person's health. No matter what the situation, using these synonyms can help you add variety to your vocabulary and convey a more nuanced picture of the situation at hand.