The property of being perpetual (seemingly ceaseless).

synonym: perpetuity.

Roget 112: perpetuity, eternity, everness^†, aye, sempiternity^†, immortality, athanasia^†; interminability^†, agelessness^†, everlastingness etc. adj.; perpetuation; continued existence, uninterrupted existence; perennity^†; permanence (durability) 110.    ... show more

Dutch: eeuwigheid, infiniteit, oneindigheid
Polish: wieczystość