With origin in Latin erroneus, wrong is an adjective that refers to what carries or presents a error. The errors, meanwhile, are mistakes or faults.
For instance: “Due to an erroneous calculation of the taxes that I had to pay, finally the car was much more expensive than I had anticipated at first”, “I never received the package because of a wrong information in my registry”, “I think the foreign policy of this government is wrong”.
In some contexts, erroneous refers to a objective or concrete failure. Suppose that an individual, watching a television program, takes note of a recipe for preparing a cake. When the cook indicates that they should be used 500 grams of flour, the viewer gets confused and writes 50 grams. So when you do the preparation, the result is disappointing. In this case there is an obviously wrong use of the ingredients, since the amount indicated by the Chef.
Qualifying something as an error, however, may be due to a opinion or to a subjective gaze. An economist can assure that the measures announced by an official are wrong since, according to his viewThey will not contribute to generating greater activity or improving the situation of the inhabitants. For the official in question, on the other hand, it is a successful initiative.
On the other hand, it is important to mention that erroneous and erratic they don’t mean the same thing. The wrong is wrong, while the erratic is associated with the wandering: a frequent change of direction or course.