noun
1.
Synonyms: acrimony , asperity, mordancy
Related Word: acidity, sourness, tartness; crabbedness, dourness, saturninity, surliness; acridity, bitterness; harshness, roughness
Contrasted words: blandness, gentleness, mildness, smoothness; amiability, complaisance, good nature
Antonyms: mellowness
2.
Synonyms: sarcasm , causticity, corrosiveness, sarcasticness