Synonyms|228Antonyms|2|Broader|8Narrower|0Related|61

31 entries under adjective topic. ×

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groundbreaking(momentous, landmark)
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historical
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indicative
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leading-edge
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major
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meaningful
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original
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primary
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rebellious
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relevant
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substantial
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APASmart Define. (2015). milestone thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/milestone/thesaurus/synonyms
ChicagoSmart Define. 2015. "milestone thesaurus" https://smartdefine.org/milestone/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, milestone thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/milestone/thesaurus/synonyms>.
MLASmart Define. "milestone thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/milestone/thesaurus/synonyms>