have no idea
English
    
    Verb
    
have no idea (third-person singular simple present has no idea, present participle having no idea, simple past and past participle had no idea)
- To not know at all.
- To be mistaken; to not have a correct idea.
-  2019, Abhijit V. Banerjee, Esther Duflo, Good Economics for Hard Times, page 236:- For both Margaret Thatcher in the UK and Ronald Reagan in the US, what was to blame for the slump in the late-1970s[sic] was clear (though we now know they really had no idea).
 
 
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Related terms
    
- I have no idea
Translations
    
know not
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Further reading
    
- have no idea at OneLook Dictionary Search
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