acrimonious
Pronunciation:
/ˌæk.ɹɪ.ˈməʊ̯.nɪ.əs//-ɹə-/adjective
Definitions
Harsh and sharp, or bitter and not pleasant to the taste; acrid, pungent.
Angry, acid, and sharp in delivering argumentative replies: bitter, mean-spirited, sharp in language or tone.