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Definition of darkhorse

darkhorse

/ˈdɑːrkˌhɔːrs/
dark · horse

Plural:darkhorses
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darkhorse Lexical Profile

darkhorse Game Scores & Validity

• adjective

1

Having unexpected or little-known qualities that make a surprise victory or success possible.

Example

"The independent filmmaker emerged as a darkhorse contender during the awards season."

Synonyms
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Antonyms
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• noun

1

A candidate, competitor, or entrant about whom little is known but who unexpectedly wins or succeeds (typically written as "dark horse").

Example

"Once considered a complete darkhorse in the primary election, the mayor quickly gained momentum in the polls."

Synonyms
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Antonyms
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Word Nuance & Usage

While sometimes written as the closed compound "darkhorse" or hyphenated as "dark-horse" (especially when used attributively before a noun), standard dictionaries predominantly prefer the open form "dark horse" for the noun.

Word Origin & Etymology

Coined in early 19th-century British horse racing jargon for a racehorse whose abilities were kept secret from bookmakers; popularized figuratively by Benjamin Disraeli in his 1831 novel The Young Duke.

Usage Trend

Historical frequency of usage in published text.

180019102020

Cite this Entry


Wordmom. (2026). Definition of Darkhorse. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/darkhorse
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