nonfan
/ˌnɑnˈfæn/
noun
- A person who is not an enthusiastic supporter or follower of something, such as a sports team, celebrity, or activity.
- The movie received positive reviews from both fans and nonfans of the original book.
- As a nonfan of horror films, she decided to skip the late-night screening.
- Even nonfans of classical music enjoyed the outdoor concert on a summer evening.
Synonyms