Rank outsider is a term used to describe a person or a team who has very little chance of winning a competition or event. Synonyms for this term include longshot, underdog, dark horse, and outsider. These words are often used in the context of sports but can also be applied in other situations such as politics, business, and entertainment. A longshot is a person or team who is considered unlikely to win but is still in contention. An underdog is someone who is not expected to win but is favored by many. A dark horse is an unknown or untested competitor with the potential to succeed unexpectedly. Outlier is another synonym that refers to someone who is outside the norm and has little chance of winning.