- The definition of an infraction is a violation of the law that is less serious than a misdemeanor, or is a violation of rules you are supposed to follow.
An example of an infraction is when you are speeding and given a traffic ticket.
a breaking of a law, pact, etc.; violation; infringement
Origin of infractionClassical Latin infractio: see infract
The act or an instance of infringing, as of a law or rule; a violation. See Synonyms at breach.
OriginSee also: infarction