147 entries under significant topic. ×

1
of note(expression, big, substantial, valuable)
1
of substance(expression, big, substantial, valuable)
1
ponderous(big, substantial, valuable, vital)
1
primordial(simple, important, original, basic)
1
renowned(big, important, substantial, large)
1
ruling(adjective, important, serious, prominent)
1
salient(big, important, substantial, valuable)
1
signal(vital, imperative)
1
solid gold(expression, big, important, substantial)
1
something(big, important, substantial, large)
1
something else(expression, big, important, substantial)
1
standout(big, substantial, valuable, vital)
1
substrative(adjective, important, original, basic)
1
super(big, important, substantial, large)
1
super-duper(big, important, substantial, large)
1
supporting(important, original, basic, vital)
1
sustaining(important, original, basic, vital)
1
theoretical(important, original, basic, vital)
1
underived(adjective, simple, rough, important)
1
unreal(big, important, substantial, large)
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APASmart Define. (2016). essential thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/essential/thesaurus/synonyms
ChicagoSmart Define. 2016. "essential thesaurus" https://smartdefine.org/essential/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, essential thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/essential/thesaurus/synonyms>.
MLASmart Define. "essential thesaurus" 31 March 2016. Web. 24 September 2026. <https://smartdefine.org/essential/thesaurus/synonyms>