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[kloo-lis] /ˈklu lɪs/
adjective, Informal.
ignorant, unaware, or uninformed:
I remember thinking my mom was clueless when I was a teenager.
Origin of clueless
First recorded in 1940-45; clue+ -less Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for clueless
Contemporary Examples
Historical Examples
  • But if you're going to have a jailer, better a clueless one than one who's really on the ball.

    Little Brother

    Cory Doctorow
  • He was fumbling his way along this clueless labyrinth of suppositions when the clock struck twelve.

    Crome Yellow Aldous Huxley
  • Many minds, endeavoring to think through the mystifying problems of God's providence, find themselves in a clueless labyrinth.

    The Meaning of Faith Harry Emerson Fosdick
British Dictionary definitions for clueless


(slang) helpless; stupid
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for clueless

1862, "trackless," from clue (n.) + -less. Meaning "ignorant, uninformed" is from 1943, said to be RAF slang from 1930s. Student slang use by 1985 is perhaps an independent extension along the same line. Related: Cluelessly; cluelessness.

Online Etymology Dictionary, © 2010 Douglas Harper
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Slang definitions & phrases for clueless



Ignorant; hopelessly unaware: We'll have to endure loads of clueless reporters raving on/ You're probably just a clueless newbie

Related Terms

totally clueless

[1980s+ Students & 1930s+ Royal Air Force; perhaps a revival, perhaps a new coinage]

The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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