There are several antonyms for the word "co-wed," which means to get married together. These words refer to actions that are opposite to the concept of getting married. The first antonym is to "divorce," which means to end a legal marriage. The second is to "break up," which means to end a non-marital relationship. The third antonym is to "separate," which means to live apart or to divide into segments. Finally, the fourth antonym is to "remain single," which means to not get married. These words represent the opposite of the joyous occasion of getting married and highlight the various reasons why couples may decide to go their separate ways.