82 entries under substantial topic. ×

0
ample(significant, large, quite, fairly)
0
appreciable(significant, large)
0
astronomical(significant, large)
0
bountiful(significant, large)
0
chief(big, significant, valuable, vital)
0
comfortable(significant, large)
0
commodious(significant, large)
0
goodly(significant, large)
0
hefty(significant, large)
0
huge(significant, large)
0
large-scale(significant, large)
0
lavish(significant, large)
0
major(significant, large)
0
much(significant, large, quite, fairly)
0
noticeable(significant, large)
0
plentiful(significant, large)
0
reasonable(significant, large)
0
respectable(significant, large)
0
sizable(significant, large, quite, fairly)
0
sizeable(significant, large)
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APASmart Define. (2015). something thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/something/thesaurus/synonyms
ChicagoSmart Define. 2015. "something thesaurus" https://smartdefine.org/something/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, something thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/something/thesaurus/synonyms>.
MLASmart Define. "something thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/something/thesaurus/synonyms>