Definitions

1. noun

A person who engages in or is associated with a feud, especially a historical or romanticized one

“The novel depicted a romanticized feudist struggling for honor and justice in a medieval society.”

2. noun

A person who is engaged in a long-standing conflict or rivalry, often with a sense of honor or pride

“The two families had a long-standing feud, with each side having its own feudist who sought to outdo the other.”