1. the quality or state of lacking a definite plan, purpose, or pattern
2. the quality of being determined by chance rather than by design
Usage: mathematics; statistics

Examples

• The randomness of the lottery makes it impossible to predict the winning numbers.
• Scientists study the apparent randomness in quantum mechanics.
• The randomness of his daily routine made it hard to schedule meetings.
• Computer programs use algorithms to generate randomness for simulations.
• The randomness of the weather patterns surprised meteorologists.
• She appreciated the randomness of discovering new books at the library.