Dictionary

illogical

adjective il·log·i·cal \-ji-kəl\

: not showing good judgment : not thinking about things in a reasonable or sensible way : not logical

Full Definition of ILLOGICAL

1
:  not observing the principles of logic <an illogical argument>
2
:  devoid of logic :  senseless <illogical policies>
il·log·i·cal·i·ty \-ˌlä-jə-ˈka-lə-tē\ noun
il·log·i·cal·ly \-ˈlä-ji-k(ə-)lē\ adverb
il·log·i·cal·ness \-kəl-nəs\ noun

Examples of ILLOGICAL

  1. It is illogical to think that things will change on their own.
  2. <the illogical claim that playing basketball makes people taller because one sees so many tall players>

First Known Use of ILLOGICAL

1588

Other Logic Terms

a posteriori, connotation, corollary, inference, mutually exclusive, paradox, postulate, syllogism
ILLOGICALLY Defined for Kids

illogical

adjective il·log·i·cal \i-ˈlä-ji-kəl\

Definition of ILLOGICAL for Kids

:  not using or following good reasoning <an illogical argument>
il·log·i·cal·ly adverb

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