The word "un-hidden" means visible, revealed or exposed. Its antonyms are words that convey the opposite meaning, such as concealed, hidden or secret. When something is un-hidden, it means that it can be easily perceived or detected, while its antonyms suggest something that is not easily accessible, perhaps even restricted or unknown. To find the antonyms for "un-hidden", we can look for words that convey a sense of secrecy or obscurity. Examples of such words include discreet, unseen, confidential, and covert. While the word "un-hidden" suggests transparency and openness, its antonyms bring to mind a sense of privacy and secrecy.