We don't have synonyms for dark horses yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are dark horse, dark house and dark-horse.
(n) :
(idiomatic) Someone who possesses talents or favorable characteristics that are not known or expected by others.
(n) :
(idiomatic, politics) A candidate for an election who is nominated unexpectedly, without previously having been discussed or considered as a likely choice.
(n) :
(horse racing) A horse whose capabilities are not known.
(n) :
Used other than figuratively or idiomatically: see dark, horse.
(n) :
(idiomatic) Someone who possesses talents or favorable characteristics that are not known or expected by others.
(n) :
(idiomatic, politics) A candidate for an election who is nominated unexpectedly, without previously having been discussed or considered as a likely choice.
(n) :
(horse racing) A horse whose capabilities are not known.
(n) :
Used other than figuratively or idiomatically: see dark, horse.