Lambastes is an interesting word that's used when you want to express strong criticism or harsh language towards someone or something. However, there are several synonyms you might want to consider using to add some variety to your language. For instance, you can use words like berates, castigates, scolds, chides, rebukes, lectures, or admonishes. These words add some color and depth to your language by expressing your opinion in a way that's slightly different from the usual. Using synonyms for lambastes can help maintain the beauty of the English language and prevent monotony in writing.