Illogical

прилагательное алогичный, нелогичный, непоследовательный

Большой англо-русский словарь

Illogical

adjective 1. not observing the principles of logic Example: an illogical argument 2. devoid of logic; senseless Example: illogical policies • illogicality noun • illogically adverb • illogicalness noun

Merriam-Webster's Collegiate Dictionary