dark-horse

Unexpected potential winner

A dark horse is a competitor about whom little is known or who unexpectedly emerges as a contender.

The term comes from horse racing, where an unknown horse might surprise bettors.

In politics, a dark-horse candidate enters late or lacks early prominence but gains momentum: He was a dark horse who came from nowhere to win the nomination.

The phrase often carries admiration for the underdog's surprising success.

underdog

longshot

Unlikely to succeed

overlooked · underrated · unfancied · challenger · contender · Cinderella story · David vs Goliath · minnow · little guy · scrappy

hidden-potential

undiscovered

Not yet found

under-the-radar · rising star · up-and-comer · emerging · breakout · late bloomer · diamond in the rough · hidden gem · untapped · latent

surprise

upset

Disturb, topple, or shock

sleeper · unexpected · unpredictable · twist · revelation · eye-opener · jaw-dropper · turnaround · anomaly · spoiler

competition

race

Competition of speed

nomination · field · frontrunner · favorite · poll · odds · betting · handicap · pundit · prediction

Opposites
predicted success/expectation

dark-horsefavorite

Most liked option

frontrunner · front-runner · sure thing · shoo-in · shoe-in

public profile/visibility

dark-horsehousehold name

Widely recognized person or brand

big name · known quantity · marquee name · familiar face · public figure

odds/betting status

dark-horseodds-on

Likely to win

smart money · banker · sure bet · lock

Family

dark, horse, darkness, darken, horses, darkened, darkest, darker, horsing

Familiarity
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Profile
Used worldwide · Timeless · Everyday, not technical · Rated G