1. a person who writes melodramas
2. a person who behaves in an overly dramatic or emotional way

Examples

• The Victorian melodramatist wrote plays filled with villains and heroines in distress.
• She was known as a talented melodramatist whose works drew large audiences.
• Don’t be such a melodramatist about losing your phone.
• His reputation as a melodramatist made people take his complaints less seriously.
• The melodramatist’s latest play featured a mustache-twirling villain.
• Everyone rolled their eyes when the office melodramatist began another emotional outburst.