Definitive
Definitive adjective - Being the most accurate and apparently thorough.
Important and definitive are semantically related. In some cases you can use "Important" instead an adjective "Definitive".
Important
Important adjective - Having great meaning or lasting effect.
Definitive and important are semantically related. Sometimes you can use "Definitive" instead an adjective "Important".
Mutual synonyms
Both words in one sentence
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Important Haircut - Masataka gives one to Souma to signify Abigail's definitive passing and his father's acceptance of such a fact.
Source: Manga / Sakura Gari - The definitive case where being right is more important than doing right (or doing much of anything).
Source: We ARE Struggling Together - Maybe they're the first of their kind, or the last; maybe they are the definitive uber-example of whatever it is they are; maybe they represent some kind of genesis or important change; or maybe it's not entirely clear what the symbolism is meant to be.
Source: Adam and/or Eve
Cite this Source
Important and Definitive. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/definitive/important
Definitive & Important. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/definitive/important>.
Important or Definitive. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/definitive/important.
Google Ngram Viewer shows how "definitive" and "important" have occurred on timeline