The antonyms for the word "un-broached" include "explored," "addressed," "tackled," "discussed," and "approached." These words signify that a particular issue or subject has been dealt with, discussed, or explored thoroughly, leaving no stone unturned. On the other hand, if something remains un-broached, it implies that it has not been touched or addressed at all. It remains unexplored, daunting, and the consequences are unknown. In modern-day workplaces and social settings, it is essential to approach all issues and address them head-on, rather than letting them remain un-broached and unaddressed, leading to miscommunication, misunderstanding, and even conflict.