1. wrongly assigned to a particular category or group

1. past tense and past participle of misclassify; to have assigned something to the wrong category or group

Examples

• The document was misclassified as confidential when it should have been public.
• Several species were misclassified in the original study.
• The email was misclassified as spam by the filter.
• Students who were misclassified received additional testing.
• The researcher misclassified the data points in the wrong category.
• Many artifacts have been misclassified due to incomplete information.
• The system frequently misclassified legitimate transactions as fraudulent.