( often initial capital letter ) Roman Catholic Theology . a region on the border of hell or heaven, serving as the abode after death of unbaptized infants (limbo of infants) and of the righteous who died before the coming of Christ (limbo of the fathers or limbo of the patriarchs).

a place or state of oblivion to which persons or things are regarded as being relegated when cast aside, forgotten, past, or out of date

My youthful hopes are in the limbo of lost dreams.

an intermediate, transitional, or midway state or place.

a place or state of imprisonment or confinement.

noun

certainty , certitude , sureness , surety

noun

demilitarized zone , left field , nothingness , nowhere , oblivion , out there , siberia , dance , neglect