De-nominate is a term used in finance and economics to refer to the process of removing the nominal value of a currency or asset. While the opposite of de-nominate would be to nominate or assign a value to something, there are also several antonyms that can be used to describe the opposite of de-nominate in different contexts. These antonyms could include terms like "valorize", "value", or "price", which all refer to the process of assigning or determining a specific value for something. Other antonyms for de-nominate might be "monetize" or "fiscalize", which imply the process of turning something into a monetary value or incorporating it into the larger economic system.