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naked eye

Idioms

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:

naked eye

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

"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

Seen with the naked eye from the stern of our 40-foot tour boat, the dark blobs bobbing in the restless sea didn’t look like much.

From The Wall Street Journal ● Aug. 26, 2026

The sample is checked for tiny amounts of blood that cannot be seen with the naked eye.

From Science Daily ● Aug. 21, 2026

Because most of them can’t be seen with the naked eye.

From "Thirteen Reasons Why" by Jay Asher

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.