When it comes to talking about a positive trend in the economy, the phrase "economic upswing" may not always be the most creative or descriptive. There are several other synonyms you can use to add more nuance to your language, such as "economic recovery," "economic expansion," "economic growth," "financial boom," "positive economic trend," "economic revitalization," "economic resurgence," "economic rebound," "economic renewal," and "financial upturn". Using these alternative phrases can help you convey a more accurate picture of the specific economic situation you are discussing and can make your writing or speech more engaging and informative.