20 entries under long-lasting topic. ×

15
extended(verb, adjective, tedious, long, advanced)
14
prolonged(verb, adjective, great, deep, high)
13
elongated(verb, adjective, great, deep, high)
11
long(adjective, time, great, deep, high)
11
protracted(verb, adjective, great, deep, high)
7
elongate(adjective, great, deep, high, remote)
5
interminable(tedious, long, extended, length, drawn-out)
5
lengthy(adjective, great, deep, high, remote)
3
extensive(adjective, great, deep, high, remote)
2
long-winded(tedious, long, extended, drawn-out)
2
longish(adjective, great, deep, high, remote)
0
diffuse(tedious, long, extended, interminable, drawn-out)
0
padded(tedious, long, extended, interminable, drawn-out)
0
prolix(tedious, long, extended, protracted, lengthy)
0
tedious(long, extended, protracted, lengthy, drawn-out)
0
tiresome(tedious, long, extended, drawn-out)
0
verbose(tedious, long, extended, drawn-out)
0
wearisome(tedious, long, extended, drawn-out)
0
windy(tedious, long, extended, drawn-out)
0
wordy(tedious, long, extended, drawn-out)
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APASmart Define. (2015). lengthened thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/lengthened/thesaurus/synonyms
ChicagoSmart Define. 2015. "lengthened thesaurus" https://smartdefine.org/lengthened/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, lengthened thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/lengthened/thesaurus/synonyms>.
MLASmart Define. "lengthened thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/lengthened/thesaurus/synonyms>