The antonyms for the phrase "brings into the open" could be "hides," "conceals," or "suppresses." These words imply that something is being kept secret or hidden from view. Other antonyms could be "obscures," "veils," or "masks," which suggest that something is being made unclear or difficult to see. Conversely, words like "exposes," "reveals," or "unveils" could be considered synonyms for "brings into the open," as they all suggest something is being made plain and clear for all to see. It's important to consider the context in which these words are used to fully understand their meanings and implications.