Re-entering means to enter again or to return to a previous state. There are several antonyms for the word re-entering which include exiting, leaving, abandoning, departing, and forsaking. Exiting is the opposite of re-entering and it means to leave or go out of a place. Leaving means to depart or exit from a place or situation. Abandoning means to give up or desert something or someone. Departing means to leave a place, especially for a journey. Forsaking means to renounce or abandon someone or something. These are some of the common antonyms for the word re-entering which can help improve your writing and communication skills.