scurrilous

Etymology

From Latin scurrīlis (“buffoon-like”), from scurra (“a buffoon”). Doublet of scurrile.

adj

1. (of a person) Given to vulgar verbal abuse; foul-mouthed.
2. (of language) Coarse, vulgar, abusive, or slanderous.
   She said Johnson was “a better man than many of your detractors will ever understand”, adding that it was “so desperately sad that you let yourself down by making a scurrilous accusation against the leader of the opposition”. 2022-02-03, Heather Stewart, quoting Munira Mirza, “Boris Johnson’s policy chief quits over PM’s ‘scurrilous’ Savile remark”, in The Guardian
3. Gross, vulgar and evil.
   We have had our address used by scurrilous crooks in the past to gain assets by fraud.
   Some days, I try to imagine how scurrilous it would be for a left-leaning government in Canada to embark on such a costly political agenda for, say, a 10-year period, and still find itself unable to convince Canadians that the majority have benefited from this. 2013, Alex Himelfarb, Jordan Himelfarb, Tax Is Not a Four-Letter Word: A Different Take on Taxes in Canada