Unmasking is the act of revealing the true identity or nature of something or someone. Antonyms for the word unmasking could be concealing, covering up, masking, hiding, or camouflaging. For instance, one might conceal a secret or cover up a mistake to avoid being exposed or unmasked. Similarly, a chameleon could camouflage itself to hide from predators. Masking can refer to hiding one's emotions or thoughts, while hiding involves physically concealing something. In summary, antonyms for the word unmasking can vary depending on the context in which they are used.