Synonyms:
bitterness, acrimony, acerbity, jaundice, tartness, thorniness
Meaning: a rough and bitter manner
Usage examples
The gradual disruption of parties, and the new and radical attitudes assumed by men of independent thought, gave ample occasion to indulge in such epithets as "apostates," "renegades," and "traitors." Unusual acrimony grew out of the zeal of the Church and its ministers.