The antonyms for "bring into open" include "conceal," "hide," "cover up," "suppress," and "veil." These words refer to actions that hide or obscure information, opinions, or knowledge that should be made public. When someone tries to conceal or cover up information, they're not allowing others to see the full picture or make informed decisions. However, it's important to note that these actions may be necessary for certain situations, such as protecting sensitive information or personal privacy. Nonetheless, bringing something into the open allows for transparency and openness, which are crucial for building trust and fostering healthy relationships.