verb

• (transitive) to puzzle, perplex, baffle, bewilder (somebody); to afflict by being complicated, contradictory, or otherwise difficult to understand
  "It confused me when I went to the office and nobody was there, but then I realised it was Sunday."
• (transitive) To mix up, muddle up (one thing with another); to mistake (one thing for another).
  "People who say "hola" to Italians are confusing Italian with Spanish."
• (transitive) To mix thoroughly; to confound; to disorder.
• (transitive, dated) To make uneasy and ashamed; to embarrass.

adj

• (obsolete) Synonym of confused.
  "Moꝛe ouer take away oꝛdre from all thynges / what ſhulde than remayne? certes nothynge finally / except ſome man wolde imagine eftſones / Chaos: whiche of ſome is expounde a cõfuse mixture: […]"