dysfunctional
adj.adj. not working the way it should. You use this to describe a group, like a family or a machine, that has serious problems and does not act normally.
adj. deviating from normal or healthy functioning; failing to perform an expected role or social purpose. Often describes interpersonal relationships or organizational systems characterized by conflict or inefficiency.
The old printer is completely dysfunctional and needs replacing.
The committee became dysfunctional because the members refused to listen to each other's ideas.
Sociologists argue that dysfunctional institutions often arise when the internal incentives for individuals no longer align with the broader mission of the organization itself.
From dysfunction + -al.
Commonly used both for mechanical systems and social units like families or governments.