from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun baseball 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 micro-turbulence in the air.
  • noun An event that is hard to predict.
  • verb intransitive, baseball To pitch knuckleballs.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a baseball pitch thrown with little speed or spin


Sorry, no etymologies found.


Help support Wordnik (and make this page ad-free) by adopting the word knuckleball.



Log in or sign up to get involved in the conversation. It's quick and easy.