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illogic

American  
[ih-loj-ik] / ɪˈlɒdʒ ɪk /

noun

  1. the state or quality of being illogical; illogicality.

    His speech was full of illogic.


illogic British  
/ ɪˈlɒdʒɪk /

noun

  1. reasoning characterized by lack of logic; illogicality

"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

Etymology

Origin of illogic

First recorded in 1855–60; il- 2 + logic


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:

They will keep demonizing him, though this will require a leap in illogic.

From The Wall Street Journal ● Sep. 3, 2026

But it turned out to be a weak case, one that falls apart under the weight of its own contradictions, omissions, and leaps of illogic.

From Slate ● Aug. 7, 2026

Then again, it might be an attempt to distract us from thinking too hard about all the illogic in Zachary Donohue and T.W.

From Los Angeles Times ● May 22, 2026

They’d teach techniques to punch through the static, to see the illogic in conspiracy theories, to find the facts behind the false narratives that can sometimes shape our lives.

From Seattle Times ● Mar. 31, 2024

For Newton to explain the laws of the universe, he had to ignore the illogic within his calculus—an illogic caused by a division by zero.

From "Zero: The Biography of a Dangerous Idea" by Charles Seife

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