88 entries under significant topic. ×

2
weighty(substantial, large, sturdy, robust)
1
abundant(great, big, substantial, large)
1
comfortable(adjective, open, substantial, large)
1
consequential(substantial, large, considerable)
1
fat(adjective, great, big, full)
1
heavyweight(large, considerable)
1
lavish(substantial, large, generous)
1
material(substantial, definite, large, considerable)
1
meaningful(substantial, large, considerable)
1
momentous(substantial, large, considerable)
1
mondo(substantial, large)
1
noticeable(adjective, substantial, large, considerable)
1
worthwhile(large, considerable)
0
apparent(substantial, definite, considerable)
0
ascertainable(substantial, definite, considerable)
0
big-deal(large, considerable)
0
bountiful(substantial, large, generous)
0
clear-cut(substantial, definite, considerable)
0
definite(substantial, considerable)
0
detectable(substantial, considerable)
10 years ago|13k views|share |citing 
APASmart Define. (2016). sizable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/sizable/thesaurus/synonyms
ChicagoSmart Define. 2016. "sizable thesaurus" https://smartdefine.org/sizable/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, sizable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/sizable/thesaurus/synonyms>.
MLASmart Define. "sizable thesaurus" 24 March 2016. Web. 22 September 2026. <https://smartdefine.org/sizable/thesaurus/synonyms>