IPA: /nɒnˈfæn/
KK: /nɑnˈfæn/
A person who does not support or enjoy a specific event, activity, or group.
As a nonfan of the sport, I found the game quite boring.
Nonfan → It is formed from "non-" (meaning not) and "fan" (from Old English "fann", meaning an enthusiastic admirer or supporter). The word "nonfan" refers to someone who is not an enthusiastic admirer or supporter of something.
Think of 'non-' meaning not, and 'fan' as someone who supports or admires. This helps you remember that a nonfan is someone who does not support or admire something.