imbecile
Americannoun
-
imbeciles
plural
-
Informal. a dunce; blockhead; dolt.
Don't stand there like an imbecile. Open the door!
-
Psychology. (no longer in technical use; now considered offensive) a person of the second order in a former and discarded classification of intellectual disability, above the level of idiocy, having a mental age of seven or eight years and an intelligence quotient of 25 to 50.
noun
-
psychol a person of very low intelligence (IQ of 25 to 50), usually capable only of guarding himself against danger and of performing simple mechanical tasks under supervision
-
informal an extremely stupid person; dolt
adjective
-
of or like an imbecile; mentally deficient; feeble-minded
-
stupid or senseless
an imbecile thing to do
Other Word Forms
Derived Forms
Inflected Forms
Nouns
Etymology
Origin of imbecile
First recorded in 1540–50; earlier imbecill, from Latin imbēcillus “weak”; -ile replacing -ill by confusion with suffix -ile
Explanation
If your best friend calls you an imbecile, he's implying that you're stupid, and he's probably pretty angry with you. An imbecile is an extremely stupid person. The noun imbecile is used informally as an insult to mean "fool". Its origins are in the Latin word imbecille, "weak or feeble," and it was an official medical term for people with a specific (and low) I.Q. in the 19th and early 20th centuries. Patients who were classified as imbeciles were said to have no more intelligence than a seven year-old child.
Vocabulary lists containing imbecile
The Secret Life of Bees
Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!
Wonder
Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!
The Great Gilly Hopkins
Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!
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.
See Examples For:
But I will say you know, the Beatles wrote "Helter Skelter" and it's not their fault that some imbecile used it incorrectly.
From Salon ● Aug. 30, 2022
“That was the message that the universe was shouting at us loud and clear. And it would’ve taken an imbecile to ignore that market message,” Needham said.
From Washington Post ● Mar. 2, 2021
"It took me three hours to get to where I am this morning, because the Mayor of London is an imbecile," he says with his usual tact.
From BBC ● Nov. 29, 2020
But he went on to add, “John Dingell was not exactly a wallflower. John Dingell called the president an imbecile in his closing months.”
From Washington Times ● Dec. 22, 2019
It was so simple, I felt like an imbecile for not seeing it sooner.
From "We Are the Ants" by Shaun David Hutchinson
![]()
In an instant, in the eyes of some classmates and rivals alike, they went from promising freshmen to everlasting imbeciles.
From Los Angeles Times ● Mar. 11, 2020
If I can’t convince these imbeciles of anything, I can at least annoy them, and I think I do a reasonably good job of that.”
From Washington Post ● Nov. 25, 2019
Organisers are hoping to encourage the largest gathering of people dressed as Gumbys - the spectacle-wearing, knotted handkerchief-sporting imbeciles who became part of Python lore.
From BBC ● Jun. 26, 2019
Last Thursday, Shkreli invoked his constitutional right against self-incrimination at a House Committee on Oversight and Government Reform hearing on drug pricing, and later tweeted that lawmakers in Congress were imbeciles.
From Reuters ● Feb. 9, 2016
They were imbeciles, as well as being the Sassenach, and she herself was a saint She was, she discovered with a change of posture, interested in nothing but her darling boys.
From "The Once and Future King" by T. H. White
![]()
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.