When sportsmanship is lacking, bad behavior can rear its ugly head. Some synonyms for "bad sportsmanship" include unsportsmanlike conduct, poor sportsmanship, dirty play, and fierce competition. These terms all convey a lack of fair play and sportsmanlike behavior, such as excessive taunting, trash-talking, or unsporting gestures and actions towards opponents. Additionally, in team sports, throwing teammates under the bus, not supporting them when needed, or blaming others for personal mistakes can also fall under "bad sportsmanship." In short, when it comes to playing sports, although being competitive is important, it's also essential to remember that playing fair and demonstrating good sportsmanship is equally crucial.