Least
Least adjective - The superlative of `little' that can be used with mass nouns and is usually preceded by `the'; a quantifier meaning smallest in amount or extent or degree.
Microscopic and least are semantically related in size topic. In some cases you can use "Microscopic" instead an adjective "Least", when it comes to topics like slightest.
Microscopic
Microscopic adjective - Very small in size.
Least and microscopic are semantically related in size topic. You can use "Least" instead an adjective "Microscopic".
Mutual synonyms
Related pairs
Both words in one sentence
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They have little microscopic pits in the surface, or some other irregularity, but it's on purpose (at least at first): the readers for these discs use lasers to translate the pits into data.
Source: Useful Notes / Optical Disc -
She has at least half-dozen of kinds of super-vision (telescopic, microscopic, X-Ray...) as well as super-hearing.
Source: Comicbook / Supergirl -
It's less common to see a merfolk that's part shark note though sharks technically have scales, they are, if not microscopic, at least really small or ray, or part cetacean, crustacean, cephalopod, mollusk, etc.
Source: Unscaled Merfolk
Cite this Source
Microscopic and Least. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/least/microscopic
Least & Microscopic. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/least/microscopic>.
Microscopic or Least. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/least/microscopic.
Google Ngram Viewer shows how "least" and "microscopic" have occurred on timeline