From Longman Dictionary of Contemporary Englishrandomran‧dom /ˈrændəm/ ●●○AWL adjective 🔊 🔊 1CHANCE/BY CHANCEhappening or chosen without any definite plan, aim, or pattern 🔊 The company has introduced random drug testing of its employees. 🔊 A few random shots were fired. 🔊 We looked at a random sample of 120 families. 🔊 a random selection of women who were in the shop2 →at random3informalstrange, unusual, or unexpected 🔊 She's great - she's just so random! —randomly adverb 🔊 seven randomly chosen numbers —randomness noun [uncountable]COLLOCATIONSnounsa random sampleA test was carried out on a random sample of the cattle.a random selectionHe looked at a random selection of the files.a random numberPick a random number.a random sequenceThey were asked to memorize a random sequence of numbers.random checks/testsHe believes the police should be able to carry out random breath tests.random violenceThe family were caught up in the random violence that haunts a neighbourhood ruled by gangs.adverbscompletely/entirely randomThe atomic particles seem to move in a completely random direction.apparently/seemingly randoma wave of apparently random attackspurely/truly randoma purely random sequence of numbersphrasesin random orderThe names are in random order.