논리적이지 않거나 타당한 근거가 부족하여 이치에 맞지 않는.
Lacking sense or clear, sound reasoning; not following the principles of logic.
예문:
"The witness's testimony was dismissed because it contained several illogical statements."
"The decision to invest in a failing company without a new plan was completely illogical."
"His argument was based on an illogical assumption that everyone shares his personal values."