random — OET · Shobdo

random

adjective

random spot checks |

a random sample of eighty-six people:

unsystematic, arbitrary, unmethodical, haphazard, unarranged, unplanned, undirected, casual, indiscriminate, non-specific, stray, erratic;

chance, accidental, hit-and-miss;

serendipitous, fortuitous, contingent, adventitious;

non-linear, entropic, fractal;

rare aleatory, stochastic.

▷antonyms systematic, planned.

□ at random

five schools were chosen at random:

unsystematically, arbitrarily, randomly, without prearrangement, without method, unmethodically, haphazardly, without conscious choice, leaving things to chance;

out of a hat, by lot.

▷antonyms systematically.

random Oxford Dictionary of English