Dysfunctional family
A dysfunctional family is a family in which conflict, misbehavior, and often child neglect or abuse on the part of individual parents occur continually and regularly, leading other members to accommodate such actions. Children sometimes grow up in such families with the understanding that such an arrangement is normal. Dysfunctional families are primarily a result of co-dependent adults, and may also be affected by addictions, such as substance abuse (alcohol, drugs, etc.), or sometimes an untreated mental illness. Dysfunctional parents may emulate or over-correct from their own dysfunctional parents. In some cases, a "child-like" parent will allow the dominant parent to abuse their children.
Perceptions and historical context
A common misperception of dysfunctional families is the mistaken belief that the parents are on the verge of separation and divorce. While this is true in a few cases, often the marriage bond is very strong as the parents' faults actually complement each other. In short, they have nowhere else to go. However, this does not necessarily mean the family's situation is stable. Any major stressor, such as relocation, unemployment/underemployment, physical or mental illness, natural disaster, etc. can cause existing conflicts affecting the children to become much worse.