not have the faintest/slightest idea

idiom

Definition of not have the faintest/slightest idea 

: to not know or understand at all I don't have the faintest/slightest idea what you're talking about.

Learn More about not have the faintest/slightest idea

Share not have the faintest/slightest idea

Resources for not have the faintest/slightest idea

Statistics for not have the faintest/slightest idea

Look-up Popularity

Comments on not have the faintest/slightest idea

What made you want to look up not have the faintest/slightest idea? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

lying above or upon

Get Word of the Day daily email!

Test Your Vocabulary

Words from Greek and Roman Mythology Quiz

  • the-triumph-of-venus-by-alessandro-magnasco
  • Boreal comes from the name of the ancient Greek god of which wind?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!