6
loquacious(adjective, rambling, wordy, verbose, long-winded)
5
talkative(adjective, rambling, wordy, verbose, long-winded)
5
great(adjective, big, deep, high, large)
5
lasting(adjective, great, deep, high, remote)
5
lengthened(adjective, great, deep, high, remote)
5
tall(adjective, great, deep, high, remote)
4
drawn out(expression, adjective, great, deep, high)
4
enduring(adjective, great, deep, high, remote)
4
boring(adjective, slow, tedious, rambling)
4
copious(adjective, dull, loose, wordy, prolix)
4
dull(adjective, slow, loose, tedious, protracted)
4
everlasting(adjective, durable)
4
garrulous(adjective, rambling, wordy, verbose, long-winded)
4
longish(adjective, great, deep, high, remote)
4
perpetual(adjective, durable)
4
pleonastic(adjective, rambling, wordy, verbose, long-winded)
4
rambling(adjective, dull, loose, boring, tedious)
3
eternal(adjective, durable)
3
chatty(adjective, rambling, wordy, verbose, long-winded)
3
circumlocutory(dull, loose, wordy, prolix, verbose)
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APASmart Define. (2016). lengthy thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/lengthy/thesaurus/synonyms
ChicagoSmart Define. 2016. "lengthy thesaurus" https://smartdefine.org/lengthy/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, lengthy thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/lengthy/thesaurus/synonyms>.
MLASmart Define. "lengthy thesaurus" 26 February 2016. Web. 22 September 2026. <https://smartdefine.org/lengthy/thesaurus/synonyms>