Highest
Highest adjective - Being at a point or level higher than all others.
Slightest
Slightest adjective - Being the least in amount, number, or size possible.
Usage example: there's not the slightest chance that your plan will work
Both words in one sentence
- The fact that several key conversations of hers were offscreen, and that she was a Space Cadet of the highest order did not help in the slightest.
Source: Ambiguous Allegiance - It doesn't help that naturally the drag-racer in the game has the highest acceleration stat and even the slightest mistake will cause its front wheels to lift off the ground rendering it uncontrollable.
Cite this Source
Slightest and Highest. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/highest/slightest
Highest & Slightest. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/highest/slightest>.
Slightest or Highest. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/highest/slightest.
Google Ngram Viewer shows how "highest" and "slightest" have occurred on timeline