vitriolic

/V IH0 T R IY0 AA1 L IH0 K/
adjective
  1. 1

    Of or pertaining to vitriol; derived from or resembling vitriol.

    โ€œa vitriolic tasteโ€

  2. 2

    Bitterly scathing, caustic.

    โ€œvitriolic criticismโ€

Synonyms

Source: https://en.wiktionary.org/wiki/vitriolic