1. a person who commits adultery; a married person who has sexual relations with someone other than their spouse

Examples

• The novel tells the story of an adulterer who struggles with guilt.
• She discovered her husband was an adulterer after finding suspicious messages.
• The community shunned the known adulterer.
• In the play, the adulterer faces consequences for his actions.
• The divorce proceedings revealed he had been an adulterer for years.
• She refused to forgive the adulterer despite his apologies.