Word.ws English Dictionary

knuckleballs

knuckleballs is the plural of knuckleball.

Meaning of knuckleball

Noun

knuckleball (plural knuckleballs)

  1. A pitch thrown with the ball gripped on the fingertips and released with no rotation, which travels over an unpredictable path to the plate due to microturbulence in the air.
    • Even the pitcher doesn't know where his knuckleball is going.
    Synonyms:
    flutterball, floater, dancer, butterfly ball, ghostball, bug
  2. A type of delivery where a fast bowler holds the ball on the knuckles of the index and middle fingers.
  3. (figuratively, informal) An event that is hard to predict.
    • Our vendor keeps throwing us knuckleballs.

See all 4 meanings of knuckleball

Questions about knuckleballs

What is knuckleballs the plural of?
Knuckleballs is the plural of knuckleball.

Words near knuckleballs in the dictionary

  1. knuckleball
  2. knuckleballed
  3. knuckleballer
  4. knuckleballers
  5. knuckleballing
  6. knuckleballs
  7. knucklebone
  8. knucklebones
  9. knuckleboom
  10. knucklebooms
  11. knucklecurve

Source and license

Adapted from Wiktionary: knuckleballs (page history and authors); knuckleball (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “knuckleballs.” Word.ws, https://word.ws/knuckleballs. Based on Wiktionary, CC BY-SA 4.0.