Synonyms|439Antonyms|45|Broader|7Narrower|2Related|104

66 entries under significant topic. ×

2
material(importance, important, historic)
2
meaningful(adjective, bright, intense, unusual, important)
2
mind-blowing(adjective, informal, extraordinary, unusual, important)
2
serious(adjective, great, unusual, important, famous)
1
bodacious(adjective, unusual, outstanding, serious)
1
chips are down(expression, idiom, important, historic)
1
earth-shattering(important, historic)
1
epochal(important, historic)
1
far-reaching(important, historic)
1
grave(important, historic)
1
heavy number(expression, important, historic)
1
important serious(expression, important, historic)
1
major-league(adjective, unusual, important, famous, exceptional)
1
of moment(expression, important, historic, super-duper)
1
something(adjective, noteworthy)
1
standout(adjective, extraordinary, wonderful, exceptional, marvelous)
1
substantial(important, historic)
1
terrible(adjective, noteworthy)
1
top-drawer(adjective, unusual, outstanding, serious)
1
weighty(importance, important, historic)
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APASmart Define. (2016). memorable thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/memorable/thesaurus/synonyms
ChicagoSmart Define. 2016. "memorable thesaurus" https://smartdefine.org/memorable/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, memorable thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/memorable/thesaurus/synonyms>.
MLASmart Define. "memorable thesaurus" 1 April 2016. Web. 25 September 2026. <https://smartdefine.org/memorable/thesaurus/synonyms>