Infectious
Infectious adjective - Exciting a similar feeling or reaction in others.
Microscopic and infectious are semantically related. In some cases you can use "Microscopic" instead an adjective "Infectious".
Microscopic
Microscopic adjective - Very small in size.
Infectious and microscopic are semantically related. Sometimes you can use "Infectious" instead an adjective "Microscopic".
Both words in one sentence
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The Silver Age Supergirl, when she was affected by three Red Kryptonite meteors, got shrunk to microscopic size, which she used to her advantage to take care of some infectious viruses that were inside Dick Malverne's adoptive father.
Source: "Fantastic Voyage" Plot - And the ability of fungi to reproduce via infectious microscopic spores allows them to grow in just about any environment (including inside living bodies), and can make it nearly impossible to get rid of a fungus infestation.
Source: Magic Mushroom
Cite this Source
Microscopic and Infectious. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/infectious/microscopic
Infectious & Microscopic. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/infectious/microscopic>.
Microscopic or Infectious. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/infectious/microscopic.
Google Ngram Viewer shows how "infectious" and "microscopic" have occurred on timeline