17
forever(adverb, everlasting, always, ever, perpetually)
6
everlastingly(adverb, continuously, perpetually, permanently, durably)
6
perpetually(adverb, continuously, permanently, durably)
5
enduringly(adverb, perpetually, permanently)
5
permanently(adverb, perpetually, permanently)
4
constantly(adverb, continuously, perpetually, permanently)
4
eternally(adverb, perpetually, durably)
3
abidingly(adverb, permanently)
3
continually(adverb, continuously, perpetually)
3
continuously(adverb, continuously)
3
immortally(adverb, perpetually)
3
incessantly(adverb, continuously, perpetually, durably)
3
interminably(adverb, continuously, perpetually, durably)
3
invariably(adverb, continuously)
3
perennially(adverb, continuously, durably)
3
persistently(adverb, continuously, permanently)
3
unceasingly(adverb, continuously, perpetually)
2
ceaselessly(adverb, continuously, perpetually)
2
continuedly
2
continuingly
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APASmart Define. (2015). lastingly thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/lastingly/thesaurus/synonyms
ChicagoSmart Define. 2015. "lastingly thesaurus" https://smartdefine.org/lastingly/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, lastingly thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/lastingly/thesaurus/synonyms>.
MLASmart Define. "lastingly thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/lastingly/thesaurus/synonyms>