Inaccurate (adjective)

1. Not accurate; incorrect; not true or exact.
2. Not conforming to a standard or norm.

Origin:

From in- ("not") + accurate, from latin accūrātus ("careful, precis.e")

Examples:

1. The information in the report was inaccurate.
2. The map was inaccurate and led us to the wrong location.
3. The measurement was inaccurate and had to be redone.
4. The data was inaccurate and had to be corrected.
5. His account of the event was inaccurate and full of errors.