An aggrieved subject is someone who has been wronged or treated unfairly, and there are several synonyms that can be used to describe this type of individual. One synonym is the term 'victim', which refers to someone who has suffered harm or injury as a result of another's actions. Another synonym is 'plaintiff', which is someone who initiates a lawsuit against another person or organization. Other synonyms for an aggrieved subject include 'injured party', 'complainant', 'aggrieved person', and 'wronged party'. Regardless of the term used, the concept remains the same: an individual who has experienced injustice or mistreatment and seeks redress for their grievances.