The word "reveal" means to make something known or visible. Antonyms for this word could include words like conceal, hide, or obscure, which describe actions that prevent something from being seen or known. Other antonyms could be withhold, suppress, or keep secret, as these words describe actions that intentionally keep information from being revealed. Conversely, antonyms for "reveal" could also be words that describe actions that make something less visible or known, such as blur, distort, or obscure. All of these antonyms provide different shades of meaning that help to round out the nuanced ways in which we describe concealment and disclosure.