Adultery means having a sexual relationship with someone other than your husband or wife while being married. In simple terms, it is sexual unfaithfulness within a marriage.
The word is used in everyday speech, religion, ethics, and law, but its exact meaning can change by context. In many discussions, adultery is linked to betrayal, broken trust, and the violation of marriage vows.
Some legal systems also use the term when dealing with divorce or family matters, while others do not treat adultery as a crime.
Understanding the definition of adultery helps explain its meaning, consequences, and use in different social, religious, and legal settings.
What Is the Definition of Adultery?
The basic definition of adultery is a married person’s voluntary sexual relationship with someone who is not their spouse.
The key idea is marital unfaithfulness. Marriage usually creates an expectation of sexual and emotional loyalty between spouses. When one spouse has a sexual relationship outside the marriage, that act is commonly described as adultery.
For example, if a married man secretly has a sexual relationship with another woman, his behavior may be called adultery. The same applies to a married woman who has a sexual relationship with someone other than her husband.
The term usually focuses on sexual conduct, rather than simply having a friendship, talking to another person, or developing a harmless social connection.
The meaning can also depend on the setting. A dictionary may give a general definition, while a religious tradition or legal system may provide a more specific one.
Simple Meaning of Adultery
In very simple language, adultery means cheating on your spouse through a sexual relationship with another person.
The word is closely related to ideas such as:
- Infidelity — being unfaithful to a partner.
- Unfaithfulness — breaking a relationship’s expectation of loyalty.
- Marital betrayal — violating trust within a marriage.
- Extramarital relationship — a relationship outside marriage.
- Cheating — a common informal term for relationship unfaithfulness.
However, these words are not always exact synonyms.
For instance, infidelity can include emotional or romantic behavior that may not involve sexual intercourse. Adultery traditionally has a more specific connection with sexual relations outside marriage.
Example of adultery
A woman is married but begins a secret sexual relationship with another man. If she willingly engages in that relationship while still married, the behavior can be described as adultery.
Example that is not normally called adultery
A married man has a female coworker and they have a professional friendship. They talk, work together, and have lunch during work hours. Without a sexual relationship, this would not normally be called adultery.
Adultery and Marriage
Adultery is strongly connected to the idea of marital commitment.
Marriage can involve promises of loyalty, honesty, and faithfulness. When one spouse has a sexual relationship outside the marriage, the other spouse may feel that an important promise has been broken.
The effect is not always limited to the sexual act itself. Adultery may lead to anger, sadness, loss of trust, conflict, separation, or divorce.
For some couples, the most painful part is the secrecy. A spouse may feel betrayed not only because of the outside relationship but also because important information was hidden.
Every marriage is different, so the emotional effect of adultery can vary. Some couples choose to separate, while others try to rebuild their relationship through honest communication and counseling.
The important point is that adultery describes a form of sexual unfaithfulness, while its personal consequences can be much broader.
Adultery vs. Infidelity
Adultery and infidelity are closely related, but they are not always identical.
Infidelity is a broad term for being unfaithful in a romantic relationship. It can include sexual relationships, emotional affairs, secret romantic communication, or other behavior that violates a couple’s agreed boundaries.
Adultery traditionally refers more specifically to sexual relations involving a married person outside the marriage.
| Term | Basic Meaning | Usually Connected With |
|---|---|---|
| Adultery | Sexual relations outside marriage | Marriage |
| Infidelity | Unfaithfulness to a partner | Dating or marriage |
| Cheating | Informal term for breaking relationship boundaries | Romantic relationships |
| Affair | Secret romantic or sexual relationship | Often marriage |
| Emotional affair | Deep romantic attachment outside the relationship | Emotional intimacy |
For example, secretly falling in love with someone else may be considered emotional infidelity, even if there is no sexual relationship. Traditional definitions of adultery are narrower.
Still, modern everyday speech sometimes uses these terms interchangeably.
Adultery in Law
The legal meaning of adultery varies from one country to another.
Some legal systems have treated adultery as a criminal offense, while others have removed it from criminal law. In some places, adultery may still have relevance in family law, divorce proceedings, or related disputes.
It is important not to assume that the everyday meaning of adultery is the same as its legal meaning.
A person may be described socially as committing adultery even when the conduct is not a crime in that person’s country.
Legal rules can also depend on specific facts, such as the type of marriage, evidence, divorce laws, and the jurisdiction involved.
If someone needs legal advice about adultery, they should check the law that applies to their location or speak with a qualified lawyer.
In short, adultery is a general concept, but its legal consequences are jurisdiction-specific.
Adultery in Religion
Adultery has an important place in several religious traditions, where it is often viewed as a serious violation of marriage and moral duty.
In Christian teaching, adultery is generally condemned as a violation of marital faithfulness. Biblical teachings discuss adultery in both direct commandments and broader teachings about sexual morality.
In Islamic teaching, unlawful sexual relations are treated as serious wrongdoing, and adultery is discussed within the broader rules concerning lawful marriage and sexual conduct.
Other religious traditions also have teachings about marital fidelity, sexual behavior, and responsibility.
Religious definitions can sometimes be broader or more detailed than everyday dictionary definitions. They may consider not only the physical act but also intention, desire, marriage obligations, repentance, and moral responsibility.
Therefore, when researching the meaning of adultery in religion, it is useful to identify the specific faith tradition rather than assuming that every religion defines it in exactly the same way.
Adultery in the Bible
The Bible frequently treats adultery as a serious moral wrong.
One of the best-known references appears in the Ten Commandments: “You shall not commit adultery.” This command emphasizes faithfulness within marriage.
Biblical discussions of adultery also connect the act with betrayal and the breaking of moral obligations.
In the New Testament, Jesus expands the discussion of adultery by addressing not only outward behavior but also the condition of the heart and the importance of purity in thought and intention.
The biblical concept therefore has both a behavioral and moral dimension.
For Christians, adultery is not simply a private relationship problem. It can be understood as a violation of God’s moral teaching about marriage and faithfulness.
However, Christian teachings also emphasize forgiveness, repentance, and restoration. Different churches and denominations may explain these ideas in different ways.
Common Examples of Adultery
Examples make the meaning easier to understand.
Example one: A married person secretly has sexual intercourse with someone outside the marriage. This is a straightforward example of adultery.
Example two: A married person maintains a secret sexual relationship with a former partner for several months. This can also be described as adultery.
Example three: A married person uses dating apps and meets another person for a sexual relationship without the spouse’s knowledge. This may constitute adultery in the traditional sense.
Example four: A married person has a close friendship with a coworker but there is no sexual relationship. This is not normally adultery, although the relationship could raise other issues depending on the couple’s boundaries.
Example five: A married person develops romantic feelings for another person but never has a sexual relationship. This may be called emotional infidelity, but it does not necessarily meet the traditional definition of adultery.
These examples show why context matters. Not every form of relationship trouble is adultery.
Effects of Adultery on Relationships
Adultery can have serious effects on a marriage because it can damage trust, which is a central part of a healthy relationship.
A spouse who discovers an affair may experience shock, anger, sadness, confusion, or disappointment. Questions about honesty may continue long after the affair ends.
Common relationship effects can include:
- Loss of trust
- Frequent arguments
- Emotional distance
- Jealousy and insecurity
- Separation
- Divorce
- Difficulty rebuilding confidence
The consequences are not always permanent. Some couples decide to work through the situation and rebuild trust.
Rebuilding a relationship after adultery often requires honesty, accountability, clear boundaries, and time. Some couples also seek professional relationship counseling.
There is no single outcome. The result depends on the people involved, the nature of the affair, the level of honesty, and the choices both spouses make afterward.
Why Is Adultery Considered Serious?
Adultery is often considered serious because it can violate trust, commitment, and agreed relationship boundaries.
Marriage is more than living together. For many people, it includes promises of loyalty and exclusive romantic or sexual commitment.
When those expectations are broken, the damage can extend beyond the physical relationship.
The seriousness of adultery is understood differently across cultures and individuals. Some people view it mainly as a moral issue. Others focus on the emotional harm it can cause. In some legal systems, it may also have a formal role in family law.
The central idea remains the same: adultery involves sexual unfaithfulness within marriage.
Understanding this definition can help distinguish adultery from ordinary friendships, emotional attraction, relationship disagreements, and other forms of personal conflict.
People Also Ask About Definition of Adultery
What is the simple definition of adultery?
Adultery is generally defined as a married person’s voluntary sexual relationship with someone other than their spouse.
Is adultery the same as cheating?
They are closely related, but cheating is a broader informal term. Adultery traditionally refers specifically to sexual unfaithfulness within marriage.
Is an emotional affair adultery?
An emotional affair is not always considered adultery in the traditional sense because it may involve no sexual relationship. However, it can still be considered infidelity.
Is adultery illegal?
That depends on the country and jurisdiction. Some places do not criminalize adultery, while others may give it legal significance in specific circumstances.
What is an example of adultery?
A married person secretly having a sexual relationship with someone other than their spouse is a clear example of adultery.
What does adultery mean in the Bible?
In the Bible, adultery generally refers to sexual unfaithfulness involving a married person and is presented as a serious moral wrong.
Can a marriage survive adultery?
Yes, some marriages survive adultery. Couples may choose to rebuild trust through honesty, accountability, communication, and professional counseling, although every situation is different.
Conclusion
The definition of adultery is generally a married person’s sexual relationship with someone other than their spouse. The term is closely linked with unfaithfulness, broken trust, and marital commitment.
Its meaning can vary slightly depending on legal, religious, cultural, and personal contexts. While adultery can cause serious emotional and relationship problems, its legal consequences differ from one jurisdiction to another.
Understanding the exact context is important when discussing this sensitive term.
I am David Cooper, an English language enthusiast and content creator at Metaphounivers, dedicated to simplifying grammar and vocabulary for learners worldwide. I help students build confidence and improve their communication skills through clear, practical lessons.
