42 entries under high topic. ×

19
long(adjective, dull, time, strong, great)
15
prolonged(adjective, strong, great, excite, slow)
13
protracted(adjective, strong, great, excite, difficult)
12
extended(adjective, strong, big, large)
9
drawn-out(adjective, great, excite, slow)
9
extensive(adjective, great, big, deep)
7
overlong(adjective, great, excite, slow)
7
long-drawn-out(adjective, great, excite, slow, boring)
6
dragging(adjective, great, excite, slow)
6
elongated(adjective, great, deep, remote)
6
elongate(adjective, great, deep, remote)
5
great(adjective, big, deep, large)
5
lasting(adjective, great, deep, remote)
5
lengthened(adjective, great, deep, remote)
5
tall(adjective, great, deep, remote)
4
drawn out(expression, adjective, great, deep)
4
enduring(adjective, great, deep, remote)
4
longish(adjective, great, deep, remote)
3
expanded(adjective, great, big, deep)
3
lingering(adjective, great, slow, deep, boring)
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APASmart Define. (2016). lengthy thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/lengthy/thesaurus/synonyms
ChicagoSmart Define. 2016. "lengthy thesaurus" https://smartdefine.org/lengthy/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, lengthy thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/lengthy/thesaurus/synonyms>.
MLASmart Define. "lengthy thesaurus" 26 February 2016. Web. 24 September 2026. <https://smartdefine.org/lengthy/thesaurus/synonyms>