illogical

[ ih-loj-i-kuhl ]
/ ɪˈlɒdʒ ɪ kəl /

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 forms

il·log·i·cal·ly, adverbil·log·i·cal·ness, noun
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Examples from the Web for illogical

British Dictionary definitions for illogical

illogical

/ (ɪˈlɒdʒɪkəl) /

adjective

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

Derived Forms

illogicality (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