3
cavernous(adjective, large)
3
diffuse(adjective, common, universal, general, long)
3
elongated(adjective, great, deep, high, remote)
3
Cyclopean
3
across the board(expression, adjective, idiom, complete, full)
3
all-around(adjective, grand, universal, specific, comprehensive)
3
amplitudinous(adjective, size)
3
broad-spectrum(adjective, universal, general, specific, overall)
3
cosmic
3
elaborate(adjective, complex, green, involved, abundant)
3
full-scale(adjective, complete, total, absolute, thorough)
3
grandiose(adjective, great, big, large, huge)
3
high(adjective, strong, great, powerful, deep)
3
international
3
jumbo(adjective, great, big, substantial, generous)
3
lofty(adjective, great, deep, high, large)
3
mixed(adjective, union, universal, chaotic, worldwide)
3
outsize
3
pervasive(adjective, big, large, grand, huge)
3
plentiful(adjective, great, perfect, big, common)
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APASmart Define. (2016). extensive thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/extensive/thesaurus/synonyms
ChicagoSmart Define. 2016. "extensive thesaurus" https://smartdefine.org/extensive/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, extensive thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/extensive/thesaurus/synonyms>.
MLASmart Define. "extensive thesaurus" 29 March 2016. Web. 21 September 2026. <https://smartdefine.org/extensive/thesaurus/synonyms>