erroneous

adjective5

1. •
   Containing an error; inaccurate.

   • His answer to the sum was erroneous.
2. •
   Derived from an error.

   • His conclusion was erroneous, since it was based on a false assumption.
3. •
   Mistaken.

   • Her choice at the line-up proved to be erroneous, as she had only seen the mugger for an instant.
4. •
   Deviating from the requirements of the law, but without a lack of legal authority, thus not illegal.

   • If, while having the power to act, one commits error in the exercise of that power, he acts erroneously.
5. •
   (no longer used) Wandering; erratic.