peccadillo

Example:His virtues, such as honesty and integrity, overshadowed his occasional peccadilloes.

Definition:morally excellent or commendable behavior, qualities, or features which are significant and substantial.

Example:The serious crime of theft is an offense, unlike the minor peccadillo of a parking violation.

Definition:a serious wrongdoing or crime, often implying a violation of moral principles or codes of conduct.

Example:Judas' betrayal might have been a sin, rather than a mere peccadillo, according to Christian belief.

Definition:a serious error, fault, or wrongdoing which, if unrepented, can result in divine wrath or judgment, often implying a major fault.