Synonyms|1.4kAntonyms|650|Broader|15Narrower|0Related|2.9k

133 entries under big topic. ×

1
far-reaching(important, significant, valuable, vital)
1
fleshy(solid, physical, heavy, awkward)
1
forcible(adjective, strong, sound, tough, solid)
1
marked(significant, definite, large, valuable)
1
mondo(important, significant, large)
1
necessary(adjective, great, significant, large)
1
of moment(expression, important, significant, valuable)
1
renowned(important, significant, large)
1
roomy(adjective, great, huge, sufficient)
1
solid gold(expression, important, significant, large)
1
something(important, significant, large, valuable)
1
something else(expression, important, significant, large)
1
super-duper(important, significant, large)
1
venerable(important, significant, large)
1
whopping(great, generous, huge, good-sized)
0
barn door(expression, great, huge)
0
big deal(expression, heavy)
0
blimp(great, huge)
0
burdensome(heavy, awkward, large, weighty)
0
chief(significant, valuable, vital, imperative)
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APASmart Define. (2016). substantial thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/substantial/thesaurus/synonyms
ChicagoSmart Define. 2016. "substantial thesaurus" https://smartdefine.org/substantial/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, substantial thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/substantial/thesaurus/synonyms>.
MLASmart Define. "substantial thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/substantial/thesaurus/synonyms>