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Showing results for unintelligent. Search instead for quasi-intelligent.
Synonyms

unintelligent

American  
[uhn-in-tel-i-juhnt] / ˌʌn ɪnˈtɛl ɪ dʒənt /

adjective

  1. deficient in intelligence; dull; stupid.

    Even the most unintelligent intern knew how to operate this copy machine.

  2. characterized by or proceeding from a lack of intelligence.

    No one will respect you as long as you go around making unintelligent remarks like that.

  3. not endowed with the ability to think or reason.

    We should protect unintelligent life like trees and protozoa as well as intelligent life like humans and dolphins.


unintelligent British  
/ ˌʌnɪnˈtɛlɪdʒənt /

adjective

  1. lacking intelligence; stupid; foolish

  2. not endowed with a mind or intelligence

"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

Commonly Confused

See stupid ( def. ).

Other Word Forms

  • unintelligence noun
  • unintelligently adverb

Etymology

Origin of unintelligent

First recorded in 1600–10; un- 1 + intelligent

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.

To be clear, this doesn’t mean coming across as unintelligent.

From The Wall Street Journal • Oct. 30, 2025

Granted, he said his team did some “dumb” stuff and he criticized them for, “egregiously unintelligent fouls,” but his usual anger was mostly muted.

From Los Angeles Times • Feb. 19, 2024

It can be easy to dismiss joining a cult as “not something I would do” or even as a downright unintelligent choice.

From Slate • May 5, 2023

But sometimes dolphins do some pretty unintelligent stuff, at least from a human perspective.

From Salon • Dec. 20, 2022

I sound so unintelligent and dimwitted when I write to you.

From "Franny and Zooey" by J. D. Salinger