illogical

[ih-loj-i-kuhl]

See more synonyms for illogical on Thesaurus.com

adjective

not logical; contrary to or disregardful of the rules of logic; unreasoning: an illogical reply.

Origin of illogical

First recorded in 1580–90; il-² + logical

Related formsil·log·i·cal·ly, adverbil·log·i·cal·ness, noun

Synonyms

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unsound, absurd, preposterous.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for illogical

Contemporary Examples

In other words, in the world of logic, only the illogical has a chance.
A Doctor Explains Why Cruise Ships Should Be Banned
Kent Sepkowitz
November 19, 2014
Scientists against Stamina also sounded off in the notable EMBO Journal describing the Stamina method as illogical.
‘Hero’ Doc Accused of Harvesting Stem Cells in Dirty Basements
Barbie Latza Nadeau
April 29, 2014
It blinds us to its presence, even as it works to obscure our reality and provide logical explanations for illogical facts.
Are Black Students Unruly? Or is America Just Racist?
Jamelle Bouie
March 21, 2014
Russia has taken Crimea in an overt and illogical display of power.
Why America Must Stop Comparing Ukraine To World War II
Will Cathcart
March 10, 2014
Of all the murky dealings tied to the political heiress, why the fuss over numbers so illogical?
The Absurd Case Against Sonia Gandhi
Dilip D’Souza
October 5, 2012

Historical Examples

From it, a thousand wild, illogical, and fantastic conclusions are drawn.
The Story of the Malakand Field Force
Sir Winston S. Churchill
This is possible, it is not illogical, and Berkeley believes it.
Initiation into Philosophy
Emile Faguet
He was only misled by his love of antithesis into a hasty and illogical remark.
Wilfrid Cumbermede
George MacDonald
Plato saw the necessity of combating the illogical logic of the Megarians and Eristics.
Theaetetus
Plato
That, of course, was illogical; but you can hardly expect logic from a man in his position.
Captain Blood
Rafael Sabatini

British Dictionary definitions for illogical

illogical

adjective

characterized by lack of logic; senseless or unreasonable
disregarding logical principles

Derived Formsillogicality (ɪˌlɒdʒɪˈkælɪtɪ) or illogicalness, nounillogically, adverb

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

Word Origin and History for illogical

adj.

1580s, from assimilated form of in- (1) "not, opposite of" + logical. Related: Illogically.

illogical

Origin of .css-1fxfie5{font-size:22px;}@media (max-width:768px){.css-1fxfie5{font-size:18px;margin:0 10px 10px 0;word-break:break-all;word-wrap:break-word;-webkit-hyphens:auto;-moz-hyphens:auto;-ms-hyphens:auto;hyphens:auto;line-height:22px;}}illogical

Synonyms

Related Words

Examples from the Web for illogical

Contemporary Examples

In other words, in the world of logic, only the illogical has a chance.

Scientists against Stamina also sounded off in the notable EMBO Journal describing the Stamina method as illogical.

It blinds us to its presence, even as it works to obscure our reality and provide logical explanations for illogical facts.

Russia has taken Crimea in an overt and illogical display of power.

Of all the murky dealings tied to the political heiress, why the fuss over numbers so illogical?

Historical Examples

From it, a thousand wild, illogical, and fantastic conclusions are drawn.

This is possible, it is not illogical, and Berkeley believes it.

He was only misled by his love of antithesis into a hasty and illogical remark.

Plato saw the necessity of combating the illogical logic of the Megarians and Eristics.

That, of course, was illogical; but you can hardly expect logic from a man in his position.

illogical

Word Origin and History for illogical

adj.

Origin of illogical