Synonyms|1.2kAntonyms|101|Broader|9Narrower|7Related|405

127 entries under significant topic. ×

1
standout(adjective, great, big, wonderful, exceptional)
1
substantial(big, definite, large, valuable)
1
tangible(plain, exact, substantial, definite)
1
urgent(big, substantial, valuable, vital)
1
venerable(adjective, great, famous, outstanding)
1
vital(big, substantial, valuable, imperative)
1
weighty(solid, extraordinary, unusual, powerful)
0
abundant(substantial, large)
0
ample(substantial, large)
0
ascertainable(substantial, definite, considerable)
0
astronomical(substantial, large)
0
bountiful(substantial, large)
0
central(vital, imperative)
0
comfortable(substantial, large)
0
commodious(substantial, large)
0
consequential(substantial, large)
0
critical(big, substantial, valuable, vital)
0
doozie(substantial, large)
0
dynamite(substantial, large, remarkable, conspicuous)
0
fab(substantial, large)
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ChicagoSmart Define. 2015. "marked thesaurus" https://smartdefine.org/marked/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, marked thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/marked/thesaurus/synonyms>.
MLASmart Define. "marked thesaurus" 17 July 2015. Web. 23 September 2026. <https://smartdefine.org/marked/thesaurus/synonyms>