[{"Bold_text": "adjective", "List Items": ["subject to individual will or judgment without restriction; contingent solely upon one's discretion:an arbitrary decision.", "decided by a judge or arbiter rather than by a law or statute.", "having unlimited power; uncontrolled or unrestricted by law; despotic ; tyrannical :an arbitrary government.", "based on whim or personal preference, without reason or pattern; random :This is an unusual encyclopedia, arranged by topics in a more or less arbitrary order.", "Mathematics.undetermined; not assigned a specific value:an arbitrary constant."]}, {"Bold_text": "noun", "List Items": ["arbitraries,Printing.(in Britain) peculiar(def9) peculiar(def9)."]}]