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undetectable

  • a word derived from detect.
    detect
    verb (used with object)
    to discover or catch (a person) in the performance of some act.

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.

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Where a well-defended ball can suddenly become a goal with a nearly undetectable flick of a foot, or a perfectly placed shot blocked by a goalie’s incredible ability to launch into space?

From Los Angeles Times Jul. 1, 2026

According to investigators, the thieves went to the libraries to consult rare and valuable works, photographing and measuring them, and returned later to replace them with virtually undetectable copies.

From Barron's Jun. 9, 2026

The FDA released a major study finding most U.S. infant formula products contain low or undetectable levels of contaminants.

From The Wall Street Journal Apr. 29, 2026

Now Sam takes daily medication to keep his viral load at an undetectable level, meaning it cannot be passed to anyone else.

From BBC Apr. 23, 2026

The changes are small, probably undetectable to most, until I get to Willa’s room.

From "The Bletchley Riddle" by Ruta Sepetys and Steve Sheinkin