random

Từ điển WordNet v3.1 - WordNet Dictionary

adjective

lacking any definite plan or order or purpose;
governed by or depending on chance (Freq. 5)
- a random choice
- bombs fell at random
- random movements
• Ant:
nonrandom
• Similar to:
ergodic, haphazard, hit-or-miss, stochastic
• Derivationally related forms:
randomness