Definition of dark horse in English:

dark horse

Line breaks: dark horse

noun

  • A candidate or competitor about whom little is known but who unexpectedly wins or succeeds: a Gloucester side that could be a dark horse for the title
    More example sentences
    • You certainly hide your bushels under your lights, you dark horses!
    • But by no means does Moe view her students as dark horses.
    • You should never judge a man by his instrument, because those classical musicians are dark horses.

Origin

early 19th century: originally racing slang.

More definitions of dark horse

Definition of dark horse in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day astrogation
Pronunciation: ˌastrə(ʊ)ˈgeɪʃ(ə)n
noun
(in science fiction) navigation in outer space