• WordNet 3.6
    • adj illogical lacking orderly continuity "a confused set of instructions","a confused dream about the end of the world","disconnected fragments of a story","scattered thoughts"
    • adj illogical lacking in correct logical relation
    • ***
Webster's Revised Unabridged Dictionary
    • a Illogical Ignorant or negligent of the rules of logic or correct reasoning; as, an illogical disputant; contrary of the rules of logic or sound reasoning; as, an illogical inference.
    • ***
Century Dictionary and Cyclopedia
    • illogical Ignorant or negligent of the rules of logic or sound reasoning: as, an illogical disputant.
    • illogical Contrary to the rules of logic or sound reasoning: as, an illogical inference.
    • illogical Synonyms Inconclusive, inconsequent, unsound, fallacious, sophistical.
    • ***
Chambers's Twentieth Century Dictionary
    • adj Illogical il-loj′i-kal contrary to the rules of logic
    • ***


  • H. L. Mencken
    “Faith may be defined briefly as an illogical belief in the occurrence of the improbable.”


In literature:

The seeming illogicality of woman is of course a mere surface illusion.
"Swirling Waters" by Max Rittenberg
Bessie liked Magdalen, though she disapproved of her manner of life as weak and illogical.
"Prisoners" by Mary Cholmondeley
We call it bad when it is the conclusion of incorrect or partial or illogic premises.
"Applied Psychology for Nurses" by Mary F. Porter
But mark the illogical consequences which follow.
"The Uncollected Writings of Thomas de Quincey--Vol. 1" by Thomas de Quincey
But before she could speak the seeming need of woman reassurance, no matter how illogical, was gone.
"Then I'll Come Back to You" by Larry Evans
He was too personal and illogical for a philosopher.
"The Last Harvest" by John Burroughs
Illogical manner in which natural theologians deal with such difficulties.
"A Candid Examination of Theism" by George John Romanes
Their empty assertions prove nothing but the empty-mindedness and ignorance of their illogical rank and file.
"The Red Conspiracy" by Joseph J. Mereto
But I suppose I'm terribly illogical and no fun to argue with.
"The Fifth Wheel" by Olive Higgins Prouty
The disarrangement of the buildings, however, merely typified the incongruous and illogical disorganization of the people themselves.
"Born Again" by Alfred Lawson
To measure it by its failures is illogical and dishonest.
"The Head Voice and Other Problems" by D. A. Clippinger
It is utterly illogical to allege that evolution has banished final causes.
"Fables of Infidelity and Facts of Faith" by Robert Patterson
The Doctor became illogical and childish about it.
"The Idler Magazine, Volume III, April 1893" by Various
It was natural and illogical to scorn the people for believing in my guilt, whilst I allowed them to believe it.
"The Romance Of Giovanni Calvotti" by David Christie Murray
Such erratic conviction is most illogical, but positive.
"Oswald Langdon" by Carson Jay Lee
It was illogical, if not actually illegal.
"A Daughter of the Middle Border" by Hamlin Garland
I cannot always understand the logical fitness of things, or, rather, I am at a loss to know why some things in life are so unfit and illogical.
"Lippincott's Magazine of Popular Literature and Science, Volume 11, No. 24, March, 1873" by Various
Beside, think of the illogical position.
"The Hero of Ticonderoga" by John de Morgan
But it is just this utterly illogical, unreasonable, inconsequential character that gives the pursuit of the buttercup its charm.
"Stray Studies from England and Italy" by John Richard Greene
Giving way to illogical tenderness, the young soldier took her hand and held it.
"The Prodigal Father" by J. Storer Clouston

In news:

But there appears to be more to this illogical canine behavior, as researchers from Finland have been able to link it to obsessive- compulsive disorder.
Disability insurance termination ruled illogical.
The Impressive Illogic Of Joseph Stiglitz's Nobel Economics.
The Strategic Illogic of Political Science.
9 shows the illogical thinking of Top 25 poll voters.
Holy Motors' delightfully illogical .
Thriller illogical but offers reel moments of terror.
Orioles beaten at own illogical game in devastating 3-2 loss.
Windsor's proposed tiered water rates unfair, illogical .
How Can Supertramp's Logical Song Help You Connect With An Illogical World.
The illogical Harvard Law bias.
Disability Insurance Termination Ruled Illogical .
Illogical signs lead the pack.
Federal court rules against EPA in wetlands case, calling agency's actions ' illogical , impractical.
Illogical Silent House fails to close the deal.

In science:

After all, it is illogical to claim that a definition is not exact, since in this case one would need another, presumably exact, definition to compare it to.
Causal set as a discretized phase spacetime
As a matter of fact, primitive man is no more logical or illogical than we are.
LHC card games: bringing about retrocausality?
If the processing that processes the world was itself produced at the beginning, the circular creation illogicality remains.
The emergence of the physical world from information processing
While physical objects existing in a physical space is illogical, vir tual objects existing in a vir tual space-time is not, because processing “stacks”, i.e. processing can run processing, e.g. an operating system running a word-processing application is processing inside processing.
The emergence of the physical world from information processing
This is not in fact illogical and explains some inexplicable physics, but few people believe that the world is an illusion created by our minds.
The emergence of the physical world from information processing
Brain, M., Gebser, M., P ¨uhrer, J., Schaub, T., Tompits, H., Woltran, S.: That is Illogical Captain! The Debugging Support Tool spock for Answer-Set Programs: System Description.
Unit Testing in ASPIDE
The illogic of statistical inference for cumulative science.
Caveats for using statistical significance tests in research assessments
In detail, cognitive bias is the general term that is used to describe many subconscious procedures in the human mind that lead to perceptual distortion, inaccurate judgement, or illogical interpretation .
On a Reliable Peer-Review Process
The decision of the authors of to limit the sum of the rewards is very strange and illogical.
Comparison between the two definitions of AI