What is another word for causticity?
Pronunciation: [kɔːstˈɪsɪti] (IPA) 
The term 'causticity' refers to the ability to burn or corrode organic tissues or materials. In a broader sense, it may be used figuratively to indicate a harsh or bitter quality in speaking or writing. Some synonyms for this sense of the word include acidity, acerbity, scathing, cutting, biting, trenchant, sarcastic, and sardonic. Other synonyms for the literal sense include corrosiveness, erosiveness, destructiveness, and alkalinity, while more informal alternatives might include burniness, searingness, or stinginess. Whatever the context, it's important to choose the most precise and appropriate term for the situation in order to convey the intended meaning as accurately as possible.
