dark horse

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dark horse

Where it comes from

Originally an allusion to an unknown horse with a dark coat winning a race, as used in the 1831 novel The Young Duke by Benjamin Disraeli (1804–1881).

noun dark horses

  1. idiomatic Someone who possesses talents or favorable characteristics that are not known or expected by others. ‘She’s a dark horse,’ he said. ‘She knows just as much about climbing mountains as you or I. In fact, she was ahead of me the whole time, and I lost her.’
  2. idiomatic A candidate for an election who is nominated unexpectedly, without previously having been discussed or considered as a likely choice. That left Cardinal Robert Francis Prevost, 69 — a quiet American dark horse who had, surprisingly, emerged in the evening’s vote — as a source of particular interest.
  3. A horse whose capabilities are not known.
  4. Used other than figuratively or idiomatically: see dark, horse.

Translations

Every language

noun possessor of unexpected talents or favorable characteristics

Españoltapado
中文黑馬 /黑马 hēimǎ
हिन्दीछिपा रुस्तम chipā rustam, काला चोर kālā cor
Italianoacqua cheta, cavallo nero
Ελληνικάσιγανό ποτάμι siganó potámi
Русскийтёмная лоша́дка tjómnaja lošádka

noun unexpectedly nominated candidate

Españoltapado
日本語穴馬 anauma, 惑星 wakusei
中文黑馬 /黑马 hēimǎ
Françaisoutsider
Italianooutsider
Русскийтёмная лоша́дка tjómnaja lošádka

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Cite this
MLA

"dark horse." Wiktionary, via Micwyn, micwyn.com/word/dark%20horse. Accessed 6 Nov. 2026.

APA

dark horse. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/dark%20horse

Chicago

"dark horse." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/dark%20horse.

BibTeX
@misc{dark_horse_2026,
  title = {dark horse},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/dark%20horse},
  urldate = {2026-11-06}
}