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Adultery vs. Infidelity: Definitions, Legal Distinctions & Relationship Impact 2026

Adultery and infidelity are distinct yet frequently conflated terms. While adultery specifically refers to sexual betrayal within marriage, infidelity encompasses emotional, romantic, and physical betrayals across any committed relationship. Research reveals that emotional infidelity often produces greater trauma symptoms than sexual affairs, yet couples recover more successfully from emotional betrayal when trauma-informed therapeutic support is available. Understanding these differences is essential for legal proceedings, religious counsel, and therapeutic intervention.