the.com/miscreant

means A person who behaves badly or breaks rules — a scoundrel or rule-breaking rascal.

from From Old French mescreant, 'disbelieving' or 'heretical' — built from mes- ('wrongly') plus creant, 'believing,' tied to Latin credere ('to believe'). It started as a word for religious unbelievers and heretics in medieval times, then drifted over the centuries from 'the wrong faith' to simply 'the wrong behavior,' settling into the general scoundrel it names today.