say it: AHR-bi-trer-uh-lee
arbitrarily is an adverb meaning "in a random manner". It carries one recorded sense.
in a random manner
“the houses were randomly scattered”
“bullets were fired into the crowd at random”
Definitions, synonyms and semantic relations for arbitrarily come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.