The antonyms for the phrase "became embedded" can be expressed in many ways, depending on the context. Some possibilities include "extracted," "removable," "detached," "released," or "dislodged." These words all convey the idea of separating or removing something that was previously stuck or stuck in place. For instance, a splinter can be extracted from the skin, a rock can be dislodged from a tire, or a hook can be released from a piece of fabric. These antonyms of "became embedded" illustrate the opposite action, highlighting the possibility of undoing or reversing a process that had previously resulted in something being firmly fixed in place.