ar·bi·traryAWBrE/ˈɑːbɪtrəri/,/ˈɑːbɪtri/NAmE/ˈɑːrbətreri/adjective(of an action, a decision, a rule, etc.行动、决定、规章等)not seeming to be based on a reason, system or plan and sometimes seeming unfair任意的；武断的；随心所欲的The choice of players for the team seemed completely arbitrary.看来这个队的队员完全是随意选定的。He makes unpredictable, arbitrary decisions.他做的决定难以预料，主观武断。(formal)using power without restriction and without considering other people专横的；专制的the arbitrary powers of officials官员的专制权力▸ar·bi·trar·ilyAWBrE/ˌɑːbɪˈtrerəli/,/ˈɑːbɪtrəli/NAmE/ˌɑːrbəˈtrerəli/adverbThe leaders of the groups were chosen arbitrarily.这些团体的领导人是任意挑选的。▸ar·bi·trari·nessAWBrE/ˈɑːbɪtrərinəs/,/ˈɑːbɪtrinəs/NAmE/ˈɑːrbətrerinəs/noun[uncountable]