vitriolic

Of, similar to, or derived from a vitriol.

Bitterly scathing; caustic.

Of or pertaining to vitriol; having the properties of vitriol, or obtained from vitriol.

Biting; caustic; very severe or censorious.

Of or pertaining to vitriol; derived from, or resembling, vitriol; vitriolous. Cf. vitriol.