inaccurate
adj.containing mistakes or not being completely correct. You use this to describe information, measurements, or stories that do not match the facts.
adj.not in accordance with the truth or a standard of precision. Often used to describe data, reporting, or physical measurements that deviate from the actual value.
“The weather forecast was inaccurate and it rained all day.”
“The witness gave an inaccurate description of the car, which made it difficult for the police to find the suspect.”
“While the general premise of the documentary was sound, several of the historical dates provided were inaccurate, leading to criticism from academic experts in the field.”
Often modified by degree adverbs like 'highly', 'grossly', or 'slightly'.
From in- + accurate. See also unaccurate.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.