Search Result for "causticily": 

The Collaborative International Dictionary of English v.0.48:

Causticily \Caus*tic"i*ly\, n. 1. The quality of being caustic; corrosiveness; as, the causticity of potash. [1913 Webster] 2. Severity of language; sarcasm; as, the causticity of a reply or remark. [1913 Webster]