4 entries under irregular topic. ×

7
perpetual(adjective, limited, lasting, permanent)
5
endless(adjective, restricted, permanent, finite)
3
unending(broken, finite)
0
without end(expression, restricted, broken)
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APASmart Define. (2016). fleeting thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/fleeting/thesaurus/antonyms
ChicagoSmart Define. 2016. "fleeting thesaurus" https://smartdefine.org/fleeting/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2016, fleeting thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/fleeting/thesaurus/antonyms>.
MLASmart Define. "fleeting thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/fleeting/thesaurus/antonyms>