One who has behaved badly, or illegally.
One who holds a false religious belief; a misbeliever.
One not restrained by moral principles; an unscrupulous villain.
Lacking in conscience or moral principles; unscrupulous.
Holding an incorrect religious belief.
A poor migratory farm worker in Ireland, often viewed as a rascal or mischievous and cunning person.
A good-for-nothing person.