recusant
noun /ˈrekjʊzənt/
  /rəˈkjuːzənt/
 (formal)- a person who refuses to do what a rule or person in authority says they should doTopics Permission and obligationc2Word Originmid 16th cent.: from Latin recusant- ‘refusing’, from the verb recusare ‘to refuse’, from re- (expressing opposition) + causa ‘a cause’.