Meaning & Definition of word "Illogical"

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    Illogical

    /ɪˈlɒdʒɪkəl/

    adjective:

    • 1. Not observing the principles of logic; not reasonable or rational.
      • Example: His argument was dismissed as illogical because it was based on faulty assumptions.
    • 2. Characterized by a lack of clear, sound reasoning.
      • Example: Trying to justify such an illogical decision only added to the confusion.
    • 3. Contrary to the dictates of reason; absurd.
      • Example: It seems illogical to spend money on a new car when you can barely afford your current expenses.
    • 4. Difficult to understand due to incoherence or contradictions.
      • Example: The illogical flow of the presentation left the audience puzzled.

    Etymology

    From the prefix 'il-' meaning 'not' + 'logical', from Greek 'logikos'.

    Common Phrases and Expressions

    illogical reasoning:

    reasoning that fails to follow principles of logic

    illogical conclusion:

    a conclusion drawn that lacks rational basis

    Related Words

    logic:

    the science of reasoning, proof, thinking, or inference.

    rational:

    based on or in accordance with reason or logic.

    Slang Meanings of illogical

    Meaning: crazy idea

    Example Sentence: That's such an illogical thing to say; are you out of your mind?

    Meaning: makes no sense

    Example Sentence: Trying to justify that is just illogical, dude!