Meaning of ARBITRARY in English

ARBITRARY

ar ‧ bi ‧ tra ‧ ry AC /ˈɑːbətrəri, ˈɑːbɪtrəri, -tri $ ˈɑːrbətreri/ BrE AmE adjective

[ Word Family: noun : ↑ arbitrariness ; adverb : ↑ arbitrarily ; adjective : ↑ arbitrary ]

[ Date: 1400-1500 ; Language: Latin ; Origin: arbitrarius 'depending on the decision of a judge, uncertain' , from arbiter ; ⇨ ↑ arbiter ]

decided or arranged without any reason or plan, often unfairly:

an arbitrary decision

the arbitrary arrests of political opponents

—arbitrariness noun [uncountable]

—arbitrarily /ˈɑːbətrərəli, ˈɑːbɪtrərəli $ ˌɑːrbəˈtrerəli/ adverb :

an arbitrarily chosen number

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.