'Illogicalness' definitions:

Definition of 'illogicalness'

From: WordNet
noun
Invalid or incorrect reasoning [syn: illogicality, illogicalness, illogic, inconsequence] [ant: logicality, logicalness]

Definition of 'Illogicalness'

From: GCIDE
  • Illogical \Il*log"ic*al\, a. Ignorant or negligent of the rules of logic or correct reasoning; as, an illogical disputant; contrary of the rules of logic or sound reasoning; as, an illogical inference. -- {Il*log"ic*al*ly}, adv. -- {Il*log"ic*al*ness}, n. [1913 Webster]