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Definition of undetectable adjective from the Oxford Advanced Learner's Dictionary

undetectable

adjective

/ˌʌndɪˈtektəbl/

/ˌʌndɪˈtektəbl/

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impossible to see or find
- The sound is virtually undetectable to the human ear.
opposite detectable
Oxford Collocations Dictionary
Undetectable is used with these nouns:
level
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See undetectable in the Oxford Advanced American Dictionary

Check pronunciation: undetectable

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