Meaning of ARBITRARY in English
/ ˈɑːbɪtrəri; ˈɑːbɪtri; NAmE ˈɑːrbətreri/ adjective
( of an action, a decision, a rule, etc. ) not seeming to be based on a reason, system or plan and sometimes seeming unfair :
The choice of players for the team seemed completely arbitrary.
He makes unpredictable, arbitrary decisions.
( formal ) using power without restriction and without considering other people :
the arbitrary powers of officials
► ar·bi·trar·ily / ˌɑːbɪˈtrerəli; ˈɑːbɪtrəli; NAmE ˌɑːrbəˈt-/ adverb :
The leaders of the groups were chosen arbitrarily.
► ar·bi·trari·ness noun [ U ]
late Middle English (in the sense dependent on one's will or pleasure, discretionary ): from Latin arbitrarius , from arbiter judge, supreme ruler, perhaps influenced by French arbitraire .
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005