Greatest possible
Highest and greatest possible are semantically related. In some cases you can use "Highest" instead an adjective phrase "Greatest possible".
Highest
Highest adjective - Being at a point or level higher than all others.
Greatest possible and highest are semantically related. You can use "Greatest possible" instead an adjective "Highest".
Both terms in one sentence
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Of course, the point was that there is no greatest possible number, but when Milo is for asked the highest number he can think of, he replies, "nine trillion, nine hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine".
Cite this Source
Highest and Greatest possible. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/greatest_possible/highest
Greatest possible & Highest. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/greatest_possible/highest>.
Highest or Greatest possible. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/greatest_possible/highest.
Google Ngram Viewer shows how "greatest possible" and "highest" have occurred on timeline