caustic

He said that "they were similar characters, they were irascible, witty and caustic, and both were interested in writing".

The Republican president has had a caustic relationship with CNN and other major news organizations, branding them "fake news" and repeatedly raging against them on social media.

Through his caustic words, Desmond has made it a vicious separation.

The policy “represents one of the most caustic, corrosive and chilling efforts to squelch the voice of this commission, the office of inspector general and the Sybil Brand Commission,” Johnson said.

“I’ve got to look at the results,” Hutson said, “and despite his caustic attitude and behavior, I think he’s done a really, really good job.”