Containing or implying calumny; slanderous or defamatory.(adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "calumnious" in a sentence
"'calumnious' to-day must pass as veracious with triumph another day: gods and men have declared that Sansculottism cannot be."
""The plaintiff's lawyers never had support for their calumnious accusations against the Holy See," he added."
"Troubling because his pickings while insulting, also border on the calumnious."