The word "exboyfriend" refers to a former romantic partner, specifically a male. However, there are many other terms that can be used to describe an ex-boyfriend. Some synonyms for "exboyfriend" include "former beau," "past flame," "previous lover," "former lover," "former partner," "former boyfriend," and "ex-partner." When referring to an ex-partner who was not well-liked or had a negative impact on one's life, some synonyms might include "old flame," "former flame," "past relationship," "former beau," "former mate," "former significant other," or simply "ex." Regardless of the term used, the end result remains the same: a former romantic relationship that is no longer active.