niedokładny in English:

Your estimates were inaccurate.

I'm afraid we've got inaccurate information.

The employer has issued an inaccurate certificate of employment.

This is an interesting history book, but it is inaccurate sometimes. The facts were different

This movie is historically inaccurate.

The data is often inaccurate.

His description of the people and customs was somewhat inaccurate; I bet he has never visited the country!

The architect's drawings were totally inaccurate

Our experiment has revealed that his report was inaccurate.

The budget appears to be inaccurate and unrealistic.

Were we to populate the corpus with unnatural sentences or inaccurate translations, this resource wouldn't be of much use, now would it?