illogical

adjective

il·​log·​i·​cal (ˌ)i(l)-ˈlä-ji-kəl How to pronounce illogical (audio)
1
: not observing the principles of logic
an illogical argument
2
: devoid of logic : senseless
illogical policies
illogically adverb
illogicalness noun

Examples of illogical in a Sentence

It is illogical to think that things will change on their own. the illogical claim that playing basketball makes people taller because one sees so many tall players
Recent Examples on the Web At the beginning of the 1955 novel The Talented Mr. Ripley, as Ripley is moldering in poverty in New York and scraping together a living via petty mail scams, he’s sustained by an illogical faith in his own superiority. Sophie Gilbert, The Atlantic, 15 Apr. 2024 Scientists have long voiced concerns about the drawbacks of these kinds of large language models, which are trained on troves of text pulled from the internet and prone to spitting out answers that are inaccurate and illogical. Jake Offenhartz, Fortune, 4 Apr. 2024 The illogical behavior of Truth Social’s stock reminds me of cryptocurrency, which has also been undergoing a revival lately. Kyle Chayka, The New Yorker, 3 Apr. 2024 The dreams in this stage often seem illogical because parts of the brain's prefrontal cortex, which controls rational thought, are offline while brain regions controlling vision, movement and emotions remain active. Ingrid Wickelgren, Scientific American, 20 Feb. 2024 Now, President Biden has put a pause on DOE approval of new export projects, and the reasons behind it are mostly illogical or wrong. Michael Lynch, Forbes, 16 Feb. 2024 That suggests to him that objections to EVs are inherently illogical. Trevor Hughes, USA TODAY, 23 Mar. 2024 And while the new Congressional changes deserve attention for their own illogical self-destructiveness, the bad premises and provisions of very-short-term Pell deserve some quick attention too. Derek Newton, Forbes, 28 Feb. 2024 Teams know Randle is a fine passer, so providing him with a recipe on how to beat you seems illogical. Morten Stig Jensen, Forbes, 25 Feb. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'illogical.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1588, in the meaning defined at sense 1

Time Traveler
The first known use of illogical was in 1588

Dictionary Entries Near illogical

Cite this Entry

“Illogical.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/illogical. Accessed 24 Apr. 2024.

Kids Definition

illogical

adjective
il·​log·​i·​cal (ˈ)il-ˈ(l)äj-i-kəl How to pronounce illogical (audio)
: not using or following good reasoning
illogically adverb

More from Merriam-Webster on illogical

Last Updated: - Updated example sentences
Love words? Need even more definitions?

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