This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. A lack of logic.

n. Lack of logic; unreasonableness; a fallacy.

n. invalid or incorrect reasoning

"I trust you will believe me when I tell you that your illogic is far more painful for me to endure than all your tortures."

quality   

invalidness    invalidity   

Tajik    analogic    biologic    demagogic    geologic    gynecologic    logic    neurologic    technologic   

condoning    enginepowerset    unreasonableness    crookedness    lubricity    oxymoron    unfaithfulness    mumbo    puerility    disqualification