knuckleball

listen to the pronunciation of knuckleball
الإنجليزية - الإنجليزية
An event that is hard to predict

Our vendor keeps throwing us knuckleballs.

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

Boston Red Sox pitcher Tim Wakefield is best known for his use of the knuckleball.

Baseball - A slow pitch made by releasing the ball from the knuckles of the index and middle finger
A pitch thrown with the ball gripped on the fingertips and released with no rotation which travels over a unpredictable path to the plate due to micro-turbulance in the air
a baseball pitch thrown with little speed or spin
A knuckleball
knuckler
A knuckleball
knuckleballer