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not have a clue

Idioms

Have no idea or inkling about something, as in Jane doesn't have a clue as to why John won't call her, or Do you know what's wrong with the boiler?—No, I haven't a clue. This usage was first recorded in 1928.

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

You might not have a clue it exists - let alone that you might need to train it.

From BBC • Nov. 8, 2025

It'd be silly to go through life and not have a clue about that guy, 'cause he's just one of those people.

From Salon • Jul. 13, 2024

“I think there’s a lot of folks in the world who really, truly believe these children do not have a clue what’s going on inside of themselves. And I absolutely disagree.”

From Slate • Nov. 15, 2023

“Before hair extensions and veneers and shiny pretty clothes that are new, we were two girls from eastern Kentucky who did not have a clue about anything show business,” said Wynonna Judd.

From Seattle Times • Sep. 30, 2022

This person does not have a clue about me.

From "Three Little Words: A Memoir" by Ashley Rhodes-Courter

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023