:I disagree. "Ignorant" has strong pejorative connotations, indeed suggesting the rude, uneducated and questionably unintelligent. See WP:LABEL. Its use, except in the appropriate context (e.g., "... due to ignorance of ..."), strikes me as rather unprofessional. I'm somewhat in agreement that "derogatory" may not be appropriate either, but I don't see a clear solution, and see "ignorant" as the far worse choice. —////