The antonyms for "is in corner" are "is in the open" or "is in the center." "Is in corner" implies a sense of being trapped, isolated, or limited by surrounding walls. In contrast, "is in the open" suggests a sense of freedom, expansiveness, and opportunity. Being "in the center" implies a position of prominence, importance or relevance. These antonyms reflect contrasting states of being and highlight the importance of context and perspective in framing our experiences. Ultimately, whether we feel cornered or open, located in a corner or in the center, is largely a matter of our own mindset and perception.