Vitriolic
Vitriolic , adjective
[Compare French vitriolique.]
1.
(Chemistry) Of or pertaining to vitriol; derived from, or resembling, vitriol; vitriolous; as, a vitriolic taste. Compare Vitriol.
2.
Biting, bitter or caustic; having or expressing strong and unpleasantly negative feelings; -- of speech or feelings; the vitriolic denunciations of opponents by partisan columnists.