35
terrific(adjective, feature, characteristic, size)
35
tremendous(adjective, feature, characteristic, size)
34
heavy(adjective, feature, characteristic, size)
10
most(adjective, top, superior, big, best)
9
best(adjective, superior, big, extreme, better)
8
biggest(adjective, extreme, best, prime, chief)
8
greatest(adjective, top, extreme, best, supreme)
7
maximum(adjective, top, extreme, best, supreme)
6
maximal(adjective, maximum)
5
greater(adjective, big, best, better)
5
outside
5
titan(adjective, feature, characteristic, size)
3
main
2
better(adjective, big, best, better)
2
larger(adjective, big, best, better)
2
utmost
2
gargantuan
2
highest(top, extreme, best, supreme, maximum)
2
voluminous(adjective, characteristic, size, largeness)
1
amplest
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APASmart Define. (2015). largest thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/largest/thesaurus/synonyms
ChicagoSmart Define. 2015. "largest thesaurus" https://smartdefine.org/largest/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, largest thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/largest/thesaurus/synonyms>.
MLASmart Define. "largest thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/largest/thesaurus/synonyms>