undetected

/ ˌʌndɪˈtɛktɪd /

adjective

1. not perceived, noticed, or discovered

   the fake bomb passed undetected

Example Sentences

It is the architectural equivalent of a stealth airplane, meant to fly undetected—not so much a building as an anti-building.

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"They're polite, but they want to catch the traitors, and the traitors want to remain undetected, and both parties are excellent at what they do."

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Inside, officers found devices wrapped in foil - an attempt by offenders to transport stolen devices undetected.

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Last year, the Electoral Commission was publicly reprimanded for a litany of security failures that allowed hacking groups to spy undetected, after breaking into databases and email systems.

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She added: "Xu is a serious danger to women, and without the bravery of victims who came forward, his offending may well have continued undetected."

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Related Words

• uncharted 
• undiscovered 
• unexplored 
• unheard-of