noun
imprisonment, confinement, bondage, subjection, servitude, duress, detention, incarceration, interment, limbo, enslavement, slavery, impoundment, entombment, constraint, restraint, durance, committal, the guardhouse, custody, serfdom, thralldom, durance vile; see also confinement 1, imprisonment 1, jail, pen 1, restraint 2, slavery 1.
Antonyms liberty, freedom*, independence.