13
unremittingly(adverb, relentless, unremitting, endlessly, always)
12
all the time(expression, idiom, adverb, endlessly, always)
12
unendingly(adverb, endlessly, constantly, ceasing, continually)
11
regularly(adverb, endlessly, ever, constantly, ceasing)
10
night and day(adverb, always, ever, constantly, continually)
8
world without end(expression, idiom, adverb, age, future)
7
without end(expression, adjective, idiom, adverb, endless)
7
always
6
for good and all(expression, adverb, always, ever, evermore)
5
continuously(adverb, relentless, unremitting, on, ever)
5
without pause
4
ad infinitum(expression, adjective, idiom, adverb, vast)
4
for evermore(expression, idiom, adverb, always, ever)
3
for eternity(expression, adverb, always, ever, perpetually)
3
till time stops(expression, idiom, adverb, always, ever)
2
persistently(adverb, endlessly, always, constantly, continually)
2
every time(expression, adverb, ever, evermore, eternally)
2
without exception(expression, adverb, ever, evermore, eternally)
2
break down(verb, phrasal verb)
2
customarily(adverb, ever, evermore, eternally, for keeps)
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APASmart Define. (2015). forever thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/forever/thesaurus/synonyms
ChicagoSmart Define. 2015. "forever thesaurus" https://smartdefine.org/forever/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, forever thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/forever/thesaurus/synonyms>.
MLASmart Define. "forever thesaurus" 15 December 2015. Web. 22 September 2026. <https://smartdefine.org/forever/thesaurus/synonyms>