5
immortally(adverb, repeatedly, perpetually, infinitely, persistently)
4
continuously
4
illimitably(adverb, infinitely)
4
limitlessly(adverb, infinitely)
4
timelessly(adverb, infinitely)
3
durably(adverb, durably)
3
immeasurably(adverb, infinitely)
3
imperishably(adverb, perpetually)
3
incalculably(adverb, infinitely)
3
innumerably(adverb, infinitely)
3
lastingly(adverb, perpetually, durably)
2
ad infinitum
2
agelessly
2
cease
2
in perpetuity
2
indestructibly(adverb, perpetually)
2
never-endingly(adverb, relentlessly)
2
steadily
2
uninterruptedly(adverb, perpetually)
2
without end(expression, idiom)
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APASmart Define. (2015). eternally thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/eternally/thesaurus/synonyms
ChicagoSmart Define. 2015. "eternally thesaurus" https://smartdefine.org/eternally/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, eternally thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/eternally/thesaurus/synonyms>.
MLASmart Define. "eternally thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/eternally/thesaurus/synonyms>