Accuracy is a term that defines the level of precision in a piece of information or data. Its antonyms, conversely, are words that indicate errors or faults. One antonym is "inexactitude," which refers to the imprecise or unreliable quality of data or information. Another is "untruthfulness," which means that the data or information is false or misleading. "Inconsistency" is another antonym, indicating that there are conflicts and discrepancies between different sources of data. Finally, "incoherence" refers to information or data that is poorly organized or confusing. The opposite of accuracy can take many forms, but these antonyms reveal the various ways in which data or information can be deficient or problematic.