The antonyms for the phrase "concealed oneself" are revealed oneself, exposed oneself, and disclosed oneself. When someone conceals themselves, they try to hide or keep themselves unseen. On the other hand, when they reveal themselves, they allow others to see or discover them. Hence, revealing oneself can increase transparency and trust between people. While concealing oneself may allow someone to protect their privacy, exposing oneself can help establish deeper connections that foster respect and understanding. When someone discloses themselves, they share or reveal something about their identity or personal life, which can increase intimacy and openness in relationships.