mordacious

Strange, how all plays into the hands of mordacious fate.

I risked a glance at the harridan, who leant by the window with a mordacious smirk on her face.

That week, the satirical magazine El Jueves, known for its mordacious, highly provocative front pages, published a black front page for the first time in 25 years.

The more he intermingles mordacious taunts with apparently earnest reflections on the feelings and choices of a man suffocated by a less than satisfying matrimony, the harder it is to take him seriously or to distinguish what's satirical from what's sincere.