Meaning : In a random manner.
Example :
The houses were randomly scattered.
Bullets were fired into the crowd at random.
Synonyms : at random, every which way, haphazardly, indiscriminately, randomly, willy-nilly
Arbitrarily ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Hindi. Arbitrarily ka matlab kya hota hai?