› an increase in the amount or success of something, such as a country's economic activity: economic/market upturn There are fears that higher borrowing rates will threaten the economic upturn.an upturn in sth There are still no signs of an upturn in global economic growth.experience/see an upturn Forecasters expect to see an upturn in consumer spending by the end of the year. an upturn in prices/profits/sales a dramatic/sharp/significant upturn a gradual/sustained upturn → Compare downturn