Example : The houses were randomly scattered.
Bullets were fired into the crowd at random.

Synonyms : arbitrarily, at random, every which way, indiscriminately, randomly, willy-nilly

Example : The Prime Minister was wearing a grey suit and a white shirt with a soft collar, but his neck had become thinner and the collar stood away from it as if it had been bought haphazard.

Synonyms : haphazard