have no idea

idiom

1
: to not know or understand
I have no idea what you're talking about.
2
used to reply to someone as an emphatic "yes"
"Was it hard?" "You have no idea (how hard it was)!"

Examples of have no idea in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Most Americans have no idea how pervasive homelessness is, because instead of addressing it honestly, the most common responses are denial, minimization and criminalization. Sun Sentinel Editorial Board, Sun Sentinel, 13 Aug. 2025 But right now, most patients have no idea how much their medicines will actually cost out-of-pocket, since those obligations are determined by insurers and PBMs. Sally Pipes, Forbes.com, 8 Aug. 2025 So, maybe just for listeners who have no idea what the heck these things are, error-correcting codes are sort of a fundamental tool for protecting data from noise. Quanta Magazine, 7 Aug. 2025 Or do people have no idea, don’t care, don’t have an opinion? Fiction Non Fiction july 3, Literary Hub, 3 July 2025 See All Example Sentences for have no idea

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“Have no idea.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/have%20no%20idea. Accessed 20 Aug. 2025.

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