to turn on someone's head
- idiom
- The new research will turn our understanding of climate change on its head.
Examples
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The documentary aims to turn our perceptions of ancient civilizations on their head.
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Her innovative ideas could turn the fashion world on its head.
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They turned Gibson's idea on its head.
Synonyms
Cause a big sudden change that leaves people confused
Make people see something in a very different way
To completely change your opinion or decision
To suddenly change your opinion or plan to the opposite
To change your opinion or position completely and suddenly
Completely change what people think about something
To change a situation completely and suddenly
Antonyms
How Radical
Surface Forms
Morphology
The literal combination of 'turn' + 'head' evokes physically inverting something, so a B1 learner who knows the words could plausibly infer a meaning like 'reverse' or 'upend.' However, the phrase is a metaphorical extension used idiomatically for reversing an order or understanding, which is language-specific and not fully predictable from the parts, so it is only partially transparent.
Etymology
The idiom turn something on its head shows a clear picture: imagine giving a person or idea a full turn so the head is at the bottom and everything is upside down. That's why it means 'to completely reverse or change how something is understood'.