Prizewinning is a term that refers to the act of winning a prize or an award for one's exceptional performance, talent, or achievement. The antonyms for prizewinning are failure, losing, defeated, lost, unsuccessful, and unproductive. These words convey the opposite meaning of prizewinning, which is associated with success and recognition. Failure refers to the inability to achieve a goal or objective, while losing and defeated relate to a lack of success in a given competition or activity. Lost and unsuccessful imply that one has not achieved the desired outcome, while unproductive suggests a lack of effectiveness or efficiency in one's actions.