/dɑːrk hɔrs/
NOUN
Someone whose abilities, talents, or favorable qualities are not widely known and who may perform better than others expect.
A person or team whose abilities are not widely recognized but who may unexpectedly succeed in a competition.
A person, team, or product that achieves unexpected success despite not initially being considered a likely winner.
NOUN
A candidate who is nominated unexpectedly, without previously being discussed or considered a likely choice.
A candidate selected for an election or political position despite not having been widely expected or considered a leading contender.
NOUN
A horse whose racing ability or performance potential is not known or established.
A horse whose racing capabilities have not been sufficiently demonstrated, making its likely performance difficult to predict.