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Synonyms

curveball

American  
[kurv-bawl] / ˈkɜrvˌbɔl /
Or curve ball

noun

Baseball.
  • curveballs
    plural
  1. a pitch with a downward spin that causes the ball to drop and veer as it approaches home plate, away from the side from which it was thrown.

    He started perfecting his curveball during his junior year in high school.


Other Word Forms

Noun Inflected Forms

Etymology

Origin of curveball

An Americanism dating back to 1875–80

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

For the next four pitches, he alternated between his four-seam fastball and off-speed pitches — first his changeup and then curveball.

From Los Angeles Times Aug. 5, 2026

He held up on a curveball from Phillies right-hander Aaron Nola that clipped the bottom of the strike zone.

From Los Angeles Times Jul. 23, 2026

He adds crucial nous after Villa's plans were thrown a curveball following Amadou Onana's serious knee injury.

From BBC Jul. 23, 2026

He has added a cutter to the mix, to pair with his curveball and slider.

From The Wall Street Journal Jun. 5, 2026

His eyes squint; he’s probably nervous about the curveball I’m throwing his way.

From "They Both Die at the End" by Adam Silvera

No curveballs, but then there was never going to be.

From BBC May 19, 2026

“There’s going to be all sorts of curveballs thrown at you, sometimes faster than you hope,” Joly said.

From The Wall Street Journal Apr. 21, 2026

To be fair, they have been thrown some major curveballs.

From The Wall Street Journal Apr. 8, 2026

You are, understandably, reeling from past marital financial curveballs.

From MarketWatch Feb. 12, 2026

All he did was set the Say Hey Kid down swinging — on three straight curveballs.

From "Maniac Magee" by Jerry Spinelli

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