23
forever(adverb, everlasting, always, ever, perpetually)
7
perpetually
6
continually
5
endlessly
4
infinitely
2
ad infinitum(adjective, adverb, infinity)
2
eternally
1
always
1
at length(expression, continuously, forever, perpetually, interminably)
1
constantly
1
having no end(expression, idiom, continuously, forever, perpetually)
1
immeasurably
1
immensely
1
incessantly
1
interminably
1
perennially
1
permanently
1
steadily
1
to infinity(expression, continuously, forever, perpetually, interminably)
1
unlimitedly(continuously, forever, perpetually, interminably)
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APASmart Define. (2015). in perpetuity thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/in_perpetuity/thesaurus/synonyms
ChicagoSmart Define. 2015. "in perpetuity thesaurus" https://smartdefine.org/in_perpetuity/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, in perpetuity thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/in_perpetuity/thesaurus/synonyms>.
MLASmart Define. "in perpetuity thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/in_perpetuity/thesaurus/synonyms>