Acerbically is an adverb that describes a tone or manner that is sharp, biting, and bitter. Some synonyms for acerbically include caustically, cuttingly, sarcastically, bitingly, scathingly, scornfully, satirically, mockingly, ironically, and sardonically. These words all convey a similar sense of a speaker or writer using language to express criticism or contempt. Acerbic remarks can be not only critical, but also humorous or witty if used in the right context. By using synonyms for acerbic language, writers and speakers can add variety to their language and choose the right words to convey their intended meaning and tone.