What is the meaning of confusion?

noun

• Disorder resulting from a failure to behave predictably.
  • usage: "the army retreated in confusion"
• A mental state characterized by a lack of clear and orderly thought and behavior.
  • usage: "a confusion of impressions"
  • synonyms: mental confusion, confusedness, muddiness, disarray
• A feeling of embarrassment that leaves you confused.
  • synonyms: discombobulation
• An act causing a disorderly combination of elements with identities lost and distinctions blended.
  • usage: "the confusion of tongues at the Tower of Babel"
• A mistake that results from taking one thing to be another.
  • usage: "he changed his name in order to avoid confusion with the notorious outlaw"
  • synonyms: mix-up