120 entries under significant topic. ×

3
sturdy(adjective, strong, powerful, substantial)
2
apparent(adjective, clear, substantial, evident)
2
astronomical(adjective, substantial, large, excessive)
2
conspicuous(adjective, clear, important, powerful)
2
critical(adjective, big, heavy, important)
2
crucial(adjective, big, heavy, important, powerful)
2
discernible
2
eventful(important, historic)
2
evident(adjective, clear, substantial, apparent)
2
good-sized(substantial, generous)
2
imperative(big, substantial, valuable, vital)
2
main(vital, imperative)
2
major-league
2
measurable
2
obvious(adjective, clear, substantial, evident)
2
principal(big, substantial, large, valuable)
2
reasonable(adjective, substantial, large, adequate)
2
salient(adjective, clear, big, important)
2
sound(important, powerful, large, greatness)
2
super(adjective, great, big, substantial)
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APASmart Define. (2016). considerable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/considerable/thesaurus/synonyms
ChicagoSmart Define. 2016. "considerable thesaurus" https://smartdefine.org/considerable/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, considerable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/considerable/thesaurus/synonyms>.
MLASmart Define. "considerable thesaurus" 29 March 2016. Web. 22 September 2026. <https://smartdefine.org/considerable/thesaurus/synonyms>