Definition of caustically adverb from the Oxford Advanced Learner's Dictionary

 

caustically

 adverb
adverb
BrE BrE//ˈkɔːstɪkli//
 
; NAmE NAmE//ˈkɔːstɪkli//
 
 
jump to other results
in a bitter or sarcastic wayscathingly‘You are no help at all,’ she said caustically.