Prime
Prime adjective - Highest in rank or authority.
Significant and prime are semantically related. In some cases you can use "Significant" instead an adjective "Prime".
Significant
Significant adjective - Clearly conveying a special meaning (as one's mood).
Prime and significant are semantically related. Sometimes you can use "Prime" instead an adjective "Significant".
Mutual synonyms
Both words in one sentence
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Prime is outranked by Primus, but it's relatively rare for Primus to involve himself in things for any significant length of time.
Source: Big Good - All that despite being a brilliant tactician and rather ambitious person (the prime targets of said purges) who had a significant role in the plot that overthrew the Saint-Just regime.
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A list of British Prime Ministers, with pages linked for those who have had a significant impact in their own time and/or one in worlds of fiction.
Cite this Source
Significant and Prime. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/prime/significant
Prime & Significant. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/prime/significant>.
Significant or Prime. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/prime/significant.
Google Ngram Viewer shows how "prime" and "significant" have occurred on timeline