IPA: //ˌnɒn.kənˈfɔː.mɪst//
KK: /nɑnˈkɔrˌfɪst/
A person who does not follow the usual beliefs, customs, or practices of a group or society.
As a nonconformist, she often challenged traditional ideas and norms.
Nonconformist → It is formed from "non-" (meaning not) and "conform" (from Latin "conformare", meaning to shape together). The word describes someone who does not conform or adhere to established norms or standards.
Think of someone who is 'not' ('non-') 'shaping' ('conform') themselves to fit in — that's what a nonconformist does.