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unimpeachable
01
reliable and true to the point of being unquestionable
Examples
The historian 's records were considered unimpeachable, providing a solid foundation for the research.
The accuracy of the data was unimpeachable, leaving no room for doubt.
02
honorable and honest to the point of becoming impossible to criticize, question, or blame
Examples
Her unimpeachable conduct in the workplace earned her the admiration of all her colleagues.
She maintained an unimpeachable standard of ethics throughout her career.
03
completely acceptable; not open to exception or reproach
Lexical Tree
unimpeachably
unimpeachable
impeachable
impeach
