eternity

Universal Words noun 1 [U] (formal) time without end, especially life continuing without end after death: There will be rich and poor for all eternity. * They believed that their souls would be condemned to burn in hell for eternity. 2 (an eternity) [sing.] (informal) a period of time that seems to be very long or to never end: After what seemed like an eternity the nurse returned with the results of the test.