The term 'treated badly' can be described by the crossword solutions of abused (6 letters), WRONGED (7 letters), MISUSED (7 letters), and illused (7 letters). Abused implies that someone has been mistreated physically or emotionally, while WRONGED implies that someone has been treated unfairly or unjustly. MISUSED implies that something has been used in an inappropriate way, and illused implies that something has been treated with disrespect or contempt. All of these words suggest that someone or something has been treated poorly.