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.
Some families, in the more rural parts of an already rural state, have no idea how long the wait will be for their power to return. Erin Austen Abbott, The Atlantic, 1 Feb. 2026 But the timing seems suspicious, and makes for an odd cover story launch at the paper, mostly because the general audience for a story out of the California Post will likely have no idea who the Safdies are. Ryan Lattanzio, IndieWire, 30 Jan. 2026 Authorities have no idea about his current whereabouts, the case report states. Emilie Dorn, NBC news, 16 Jan. 2026 And most patients likely have no idea their data was ever stolen. Danielle Chemtob, Forbes.com, 16 Jan. 2026 See All Example Sentences for have no idea

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Cite this Entry

“Have no idea.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/have%20no%20idea. Accessed 8 Feb. 2026.

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