Definition of "erroneous" in English

adjective

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. (obsolete) Wandering; erratic.

5. (law) 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.