Final answer:
The first word people think of when they hear Dennis Rodman could be 'basketball' due to his NBA career, 'controversial' for his unconventional behavior, or 'appearance' reflecting his unique style.
Step-by-step explanation:
When people hear the name Dennis Rodman, various words might come to mind due to his multifaceted career and public image. Some may instantly think of basketball, as he is known for his time in the NBA, particularly with the Chicago Bulls during their championship runs in the 1990s. Others might think of controversial because of his often unconventional behavior both on and off the court, which includes his unique fashion choices, his friendship with North Korean leader Kim Jong-un, and his candid persona in the media. Lastly, Rodman is also recognized for his distinct appearance, characterized by tattoos, piercings, and brightly colored hair, which further amplified his visibility in the cultural sphere.