47 entries under big topic. ×

19
long(adjective, dull, time, strong, great)
13
protracted(adjective, strong, great, excite, difficult)
12
extended(adjective, strong, high, large)
9
extensive(adjective, great, deep, high)
5
great(adjective, deep, high, large)
3
expanded(adjective, great, deep, high)
2
broad(adjective, large, grand, huge)
2
far-flung(large, grand, huge, inclusive)
2
far-reaching(adjective, great, deep, high)
2
large(adjective, grand, huge, broad)
2
wide(adjective, large, grand, huge)
1
across the board(expression, idiom, huge, major)
1
all-encompassing(large, grand, huge, inclusive)
1
blanket(large, grand, huge, major)
1
boundless(slow, large, grand, huge)
1
capacious(large, grand, huge, major)
1
commodious(large, grand, huge, major)
1
comprising(large, grand, huge, major)
1
considerable(large, grand, huge, major)
1
hefty(large, grand, huge, major)
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APASmart Define. (2016). lengthy thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/lengthy/thesaurus/synonyms
ChicagoSmart Define. 2016. "lengthy thesaurus" https://smartdefine.org/lengthy/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, lengthy thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/lengthy/thesaurus/synonyms>.
MLASmart Define. "lengthy thesaurus" 26 February 2016. Web. 23 September 2026. <https://smartdefine.org/lengthy/thesaurus/synonyms>