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naked eye

Idioms  
  1. Sight unassisted by an instrument such as a microscope or telescope. For example, These insects are too small to be seen with the naked eye. This expression was first recorded in 1664.


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

When she questioned multiple scans that did not seem to show evidence of a tumour, she says the consultant told her it would not be "visible to the naked eye".

From BBC Sep. 13, 2026

Betelgeuse -- a reddish star in the Orion constellation that is easily visible with the naked eye and is known to change in brightness -- has been watched by people for thousands of years.

From Science Daily Aug. 27, 2026

"In the few days we've been here, it's become clear that you can see the effects of climate change with the naked eye."

From Barron's Aug. 27, 2026

Though not immediately visible to the naked eye, the ranch features a number of infrastructural updates, including automated irrigation and a fire suppression system that runs off an 18,000-gallon tank buried underground.

From MarketWatch Aug. 12, 2026

Something impossible to see with the naked eye.

From "Middlesex: A Novel" by Jeffrey Eugenides

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