you have no idea

idiom
UK: /juː hæv nəʊ aɪˈdɪə/
US: /juː hæv noʊ aɪˈdiːə/

  1. Used to emphasize that someone does not know something or is completely unaware of a situation.

    1. You think it's easy? You have no idea how hard it really is. [ ] [ ]
    2. If you think that's bad, you have no idea what's coming next; it's going to be much worse. [ ] [ ]

  2. Used to express surprise or disbelief at something someone has said or done.

    1. You did what? You have no idea how much trouble you are in. [ ] [ ]
    2. You spent all the money? You have no idea of the consequences of that action. [ ] [ ]

  3. Used to indicate that the speaker knows something that the listener does not, often implying it is impressive or significant.

    1. Just wait, you have no idea what I'm planning for your birthday! [ ] [ ]
    2. We've got a big surprise, you have no idea what we’ve been working on for weeks! [ ] [ ]

Synonyms

you wouldn't believe

Frequently Asked Questions

The word "you have no idea" in English means: Used to emphasize that someone does not know something or is completely unaware of a situation., Used to express surprise or disbelief at something someone has said or done., Used to indicate that the speaker knows something that the listener does not, often implying it is impressive or significant..

The phonetic transcription of "you have no idea" is /juː hæv nəʊ aɪˈdɪə/ in British English and /juː hæv noʊ aɪˈdiːə/ in American English. Click the 🔊 button to hear both pronunciations.

Synonyms for "you have no idea": you wouldn't believe.

Example usage of "you have no idea": "You think it's easy? You have no idea how hard it really is.". More examples on the page.