in societies or individuals, a condition of instability resulting from a breakdown of standards and values or from a lack of purpose or ideals.

The term was introduced by the French sociologist Émile Durkheim (Durkheim, Émile) in his study of suicide. He believed that one type of suicide (anomic) resulted from the breakdown of the social standards necessary for regulating behaviour. When a social system is in a state of anomie, common values and common meanings are no longer understood or accepted, and new values and meanings have not developed. According to Durkheim, such a society produces, in many of its members, psychological states characterized by a sense of futility, lack of purpose, and emotional emptiness and despair. Striving is considered useless, because there is no accepted definition of what is desirable.

American sociologist Robert K. Merton (Merton, Robert K.) studied the causes of anomie, or normlessness, finding it severest in people who lack an acceptable means of achieving their personal goals. Goals may become so important that if the institutionalized means—i.e., those means acceptable according to the standards of the society—fail, illegitimate means might be used. Greater emphasis on ends rather than means creates a stress that leads to a breakdown in the regulatory structure—i.e., anomie. If, for example, a society impelled its members to acquire wealth yet offered inadequate means for them to do so, the strain would cause many people to violate norms. The only regulating agencies would be the desire for personal advantage and the fear of punishment. Social behaviour would thus become unpredictable. Merton defined a continuum of responses to anomie that ranged from conformity to social innovation, ritualism, retreatism, and, finally, rebellion. Delinquency, crime, and suicide are often reactions to anomie.

Although Durkheim's concept of anomie referred to a condition of relative normlessness of a society or social group, other writers have used the term to refer to conditions of individuals. In this psychological usage, anomie means the state of mind of a person who has no standards or sense of continuity or obligation and has rejected all social bonds. Individuals may feel that community leaders are indifferent to their needs, that society is basically unpredictable and lacking order, and that goals are not being realized. They may have a sense of futility and a conviction that associates are not dependable sources of support.