incorrect

adj

1. Not correct; erroneous or wrong.

   “He gave an incorrect answer to a simple question.”

2. Faulty or defective.

   “The computer crashed due to incorrect programming.”

3. Inappropriate or improper.

noun

1. An item or response that is incorrect.

   “Having each day's rates of corrects and incorrects written next to the graph also makes it easier for you to check the ... If you also have students count problems incorrect, calling them “not yets,” or “learning opportunities,” or ...”