“Only blue-eyed blondes get any press,” he caustically wrote.
If he was getting hot around the collar, Ziffer said caustically, it was "partly because I'm one of those hot-headed Levantines."
And Mr. Evans had caustically rejoined: "It'll be the funny day when you'll see wings on him!"
"The latter at all costs, I presume," said Barbara, caustically.
"Darcy was always too smooth for our present taste," said Heffernan, caustically.
"We are not playing at tin politics nowadays," he caustically remarked.
"He would not be troubled with superfluous votes, either," remarked the judge, caustically.
"That is very easy to say, uncle," replied Gonzalo caustically.
"'The way is clear enough wi'oot that," from Tammas caustically.
The voice said caustically: "Unfortunately, we've nothing to do anything with."
c.1400, "burning, corrosive," from Latin causticus "burning, caustic," from Greek kaustikos "capable of burning; corrosive," from kaustos "combustible; burnt," verbal adjective from kaiein, the Greek word for "to burn" (transitive and intransitive) in all periods, of uncertain origin with no certain cognates outside Greek. Figurative sense of "sarcastic" is attested from 1771. As a noun, early 15c., from the adjective.
caustic caus·tic (kô'stĭk)
A hydroxide of a light metal.
A caustic material or substance.
Capable of burning, corroding, dissolving, or eating away by chemical action.
Of or relating to light emitted from a point source and reflected or refracted from a curved surface.
Causing a burning or stinging sensation.