19
benevolent(adjective, good, understanding, kind, reasonable)
19
voluminous(large, adjective, great, size, substantial)
18
momentous(adjective, good, importance, heavy, important)
17
weighty(adjective, good, solid, importance, heavy)
16
generous(adjective, good, give, understanding, kind)
16
major(adjective, good, important, significant, substantial)
16
material(adjective, good, importance, heavy, important)
15
fat(adjective, great, solid, heavy, important)
15
consequential(adjective, good, importance, heavy, important)
15
hefty(adjective, person, body, strong, great)
14
haughty(adjective, importance, property, valuable, main)
14
impressive(adjective, importance, large, valuable, behaviour)
14
meaningful(adjective, good, importance, heavy, important)
13
mammoth(adjective, great, large, huge, vast)
13
pretentious(adjective, importance, property, main, arrogant)
13
serious(adjective, good, importance, heavy, important)
12
elephantine(adjective, heavy, awkward, substantial, round)
12
sizeable(adjective, significant, substantial, large)
12
broad(adjective, great, heavy, round, large)
12
expansive(adjective, large, size, expansion, broad)
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APASmart Define. (2016). big thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/big/thesaurus/synonyms
ChicagoSmart Define. 2016. "big thesaurus" https://smartdefine.org/big/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, big thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/big/thesaurus/synonyms>.
MLASmart Define. "big thesaurus" 29 March 2016. Web. 22 September 2026. <https://smartdefine.org/big/thesaurus/synonyms>