not have the faintest idea/notion
idiom
: to not know at all
He didn't have the faintest idea/notion what she was talking about.
Examples of not have the faintest idea/notion in a Sentence
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Harris did not have the faintest idea where to begin.
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Los Angeles Times, 30 Aug. 2022
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Los Angeles Times, 30 Aug. 2022
Cite this Entry
“Not have the faintest idea/notion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/not%20have%20the%20faintest%20idea%2Fnotion. Accessed 30 Apr. 2025.
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