fast·​ball | \ ˈfas(t)-ˌbȯl How to pronounce fastball (audio) \

Definition of fastball

: a baseball pitch thrown at full speed and often appearing to rise slightly as it nears the plate

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Other Words from fastball

fastballer \ ˈfas(t)-​ˌbȯ-​lər How to pronounce fastball (audio) \ noun

Examples of fastball in a Sentence

He struck him out with a fastball.
Recent Examples on the Web Entering July 30 — the day before the trade deadline — Fry and Scott had combined for a 3.28 ERA, striking out nearly 13 batters per nine innings with their respective fastball-slider combos. Nathan Ruiz,, 13 Oct. 2021 Strickland got ahead in the count, 0-2, but Rosario went down and got a 98 mph, four-seam fastball and sent it to center for a two-RBI single. Todd Rosiak, Milwaukee Journal Sentinel, 12 Oct. 2021 In his final regular season start, five shutout innings versus the Cincinnati Reds on Sept. 29, Rodón’s four-seam fastball maxed out at 92.7 mph and averaged 90.9 mph — 4.5 mph below than his season average. Meghan Montemurro,, 11 Oct. 2021 Knebel struck out 11 in 7 1/3 scoreless innings of his last seven regular-season games, most in low-leverage situations, but Roberts has leaned on the fastball-curveball specialist in leverage in the playoffs, and Knebel has responded. Los Angeles Times, 10 Oct. 2021 With the Rays taking batting practice against Sale’s fastball, the notion of the Red Sox returning to Fenway in anything but a 2-0 hole in the best-of-five American League Division Series against Tampa Bay seemed unimaginable., 9 Oct. 2021 His slider and 99 mph four-seam fastball are revered. Evan Petzold, Detroit Free Press, 30 Sep. 2021 The area of concern is Gausman’s best pitch, the split-finger fastball, which has been erratic. Susan Slusser, San Francisco Chronicle, 25 Sep. 2021 At full strength and at full health, Hancock throws a much better than average fastball that can reach 99 miles per hour. Bernie Pleskoff, Forbes, 9 Sep. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fastball.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of fastball

1899, in the meaning defined above

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Time Traveler for fastball

Time Traveler

The first known use of fastball was in 1899

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Dictionary Entries Near fastball



fast break

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Statistics for fastball

Last Updated

17 Oct 2021

Cite this Entry

“Fastball.” Dictionary, Merriam-Webster, Accessed 25 Oct. 2021.

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English Language Learners Definition of fastball

: a pitch that is thrown at full speed : a very fast pitch

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