Antonyms for "de-valuate" refer to words that mean to increase or improve the value or worth of something. Some possible antonyms for "de-valuate" include "enhance," "appreciate," "boost," "augment," "enrich," "elevate," and "uplift." These words can be used to describe actions such as improving the quality of a product or service, increasing the perceived value of a brand or company, or enhancing the overall worth of an asset or investment. The opposite of "de-valuate," these antonyms convey a sense of positive growth and development, highlighting the potential for improvement rather than decline or loss.