A person who or (occasionally) thing which offends; a person who infringes a rule or regulation; a transgressor or sinner. Also: a person who…

One who wrongs another; a person who does wrong or amiss; an inflicter of wrong, harm, or injury; a wrongdoer.

One who molests or troubles another; the causer of a grievance. Obsolete.

One who injures.

one who occasions a grievance; one who gives ground for complaint.