caus·tic 
/ˈkɑ:stɪk/ adjective
/ˈkɑ:stɪk/ adjective [more caustic; most caustic] 1 : able to destroy or burn something by chemical action
▪ The chemical was so caustic that it ate through the pipes. 2 : very harsh and critical
▪ caustic film reviews ▪ She wrote a caustic report about the decisions that led to the crisis. ▪ caustic humor/wit
▪ The chemical was so caustic that it ate through the pipes.
▪ caustic film reviews ▪ She wrote a caustic report about the decisions that led to the crisis. ▪ caustic humor/wit
— caus·ti·cal·ly /ˈkɑ:stɪkli/ adverb
/ˈkɑ:stɪkli/ adverb
