Definition of Randomness

Noun: randomness ran-dum-nus

(thermodynamics) a thermodynamic quantity representing the amount of energy in a system that is no longer available for doing mechanical work
"randomness increases as matter and energy in the universe degrade to an ultimate state of inert uniformity";
- entropy, S
The quality of lacking any predictable order or plan
- haphazardness, stochasticity, noise