also: むほうしゃ
noun
Refers to a person who disregards laws or social rules, often with a rough or violent connotation.
彼は西部開拓時代の無法者のような男だ。
He is a man like an outlaw from the Wild West era.
あの無法者たちは町で暴れ回った。
Those outlaws rampaged through the town.
Compound of 無法 (lawlessness) and 者 (person). The reading むほうもの follows the kun'yomi for 者, while むほうしゃ uses the on'yomi.