eternity

eternity

noun

Definition of ETERNITY

1

endless time <the question whether the universe will end someday or continue to exist in eternity>

Synonyms everlasting, foreverness, infinity, perpetuity

Related Words boundlessness, endlessness, interminableness, limitlessness, permanence, permanency, timelessness

Near Antonyms ephemerality, impermanence, temporariness, transience, transitoriness

2

unending existence after death <a firm belief in the eternity of the soul>

Synonyms afterlife, beyond, hereafter, immortality

Related Words afterworld, otherworld

3

a long or seemingly long period of time <we waited in line for tickets for an eternity>

Synonyms aeon (or eon), blue moon, coon's age, cycle, donkey's years [chiefly British], eternity, forever, long, months, moon

Related Words infinity; lifetime

Near Antonyms flash, instant, jiffy, minute, moment, second, shake, split second, trice, twinkle, twinkling, wink; microsecond, nanosecond