152 entries under significant topic. ×

5
manifest(adjective, substantial, definite, considerable)
5
primary(adjective, body, big, important)
4
intrinsic(adjective, solid, physical, important, true)
4
visible(adjective, solid, substantial, definite)
3
discernible(adjective, substantial, definite, considerable)
3
eventful(importance, important, historic)
3
firm(adjective, strong, hard, solid, physical)
3
large(adjective, big, important, substantial)
3
observable(adjective, substantial, definite, considerable)
3
sturdy(adjective, strong, hard, solid, big)
2
abundant(adjective, substantial, large, considerable)
2
admissible(appropriate, important, related, relevant)
2
ample(adjective, substantial, large, considerable)
2
apparent(adjective, substantial, definite, considerable)
2
central(essential, basic, vital, imperative)
2
clear-cut(adjective, substantial, definite, considerable)
2
critical(adjective, big, heavy, important)
2
crucial(big, heavy, important, substantial)
2
decisive(big, important, substantial, valuable)
2
definite(adjective, big, substantial, real)
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APASmart Define. (2016). material thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/material/thesaurus/synonyms
ChicagoSmart Define. 2016. "material thesaurus" https://smartdefine.org/material/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, material thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/material/thesaurus/synonyms>.
MLASmart Define. "material thesaurus" 29 March 2016. Web. 22 September 2026. <https://smartdefine.org/material/thesaurus/synonyms>