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

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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 But the missing piece is that patients often have no idea when this technology is being used on them. Essence, 1 Jan. 2026 But really, man, from everything from the DOGE cuts earlier in the year to the government shut down, like people really have no idea. ABC News, 21 Dec. 2025 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 5 Feb. 2026.

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