The word "upswinging" refers to a positive or upward trend, especially in terms of economic growth or financial gain. Synonyms for this term would include "escalating," "ascending," "surging," or "booming." These words all convey a sense of upward momentum and growth, and are commonly used in business and financial contexts. Other possible synonyms might include "thriving," "flourishing," "prospering," or "blossoming," all of which suggest a sense of progress and growth. Overall, these synonyms for "upswinging" all paint a picture of positivity and success, making them valuable tools for those seeking to communicate growth and progress in their writing or speech.