mistaken

Wrong or incorrect in opinion, understanding, or perception.

Based on error; wrong.

Wrongly taken; misunderstood; misconceived.

Erroneously entertained, apprehended, received, or done; marked or characterized by mistake; erroneous; incorrect; blundering: said of acts, statements, notions, etc.

Having made a mistake; laboring under a mistake; in error: said of persons.