random

A roving motion; course without definite direction; lack of rule or method; chance.

Speed, full speed; impetuosity, force.

The full range of a bullet or other projectile; hence, the angle at which a weapon is tilted to allow the greatest range.

Having unpredictable outcomes and, in the ideal case, all outcomes equally probable; resulting from such selection; lacking statistical correlation.

"The flip of a fair coin is purely random."

Of or relating to probability distribution.

"A toss of loaded dice is still random, though biased."

Pseudorandom; mimicking the result of random selection.