solitary confinement

the practice of isolating a prisoner in a small, often windowless cell, with minimal human contact or environmental stimulation, as a form of punishment or for security reasons

The inmate's disruptive behavior led to a disciplinary measure, resulting in a period of solitary confinement to maintain order in the prison.
The prisoner, deemed a high-security risk, spent several weeks in solitary confinement to prevent potential disturbances with other inmates.
The policy of solitary confinement is controversial, with critics arguing that it constitutes a form of cruel and unusual punishment.
A prisoner exhibiting disruptive behavior in the correctional facility was transferred to solitary confinement for a specified duration.
Some prison systems have implemented alternatives to solitary confinement, recognizing its potential negative effects on rehabilitation.

Synonyms:

solitary