Synonyms|215Antonyms|67|Broader|2Narrower|0Related|580

8 entries under landmark topic. ×

2
breakthrough(momentous, milestone)
1
groundbreaking(adjective, momentous, milestone)
1
innovative(adjective, momentous, milestone)
1
innovatory(adjective, momentous, milestone)
1
pioneering(adjective, momentous, milestone)
1
radical(adjective, momentous, milestone)
1
revolutionary(adjective, momentous, milestone)
0
milestone
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APASmart Define. (2016). historic thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/historic/thesaurus/synonyms
ChicagoSmart Define. 2016. "historic thesaurus" https://smartdefine.org/historic/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, historic thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/historic/thesaurus/synonyms>.
MLASmart Define. "historic thesaurus" 29 March 2016. Web. 27 September 2026. <https://smartdefine.org/historic/thesaurus/synonyms>