Definition of sempiternally in US English:

sempiternally

adverb

literary
  • See sempiternal

    • ‘It's indescribably powerful, immeasurably beautiful and sempiternally bleak.’
    • ‘And the danger is perhaps at its most crucial among the esotericists in that what most see as ‘the real’ is sempiternally displaced on to the symbolic thus running the risk of draining ‘the real’ of its power.’