With a vengeance is an idiomatic expression often used to describe intense or aggressive actions taken by someone. Synonyms for this phrase include: fiercely, vehemently, intensely, passionately, ferociously, vigorously, aggressively, and zealously. In each of these cases, the implication is that the actions being undertaken are well beyond what might be considered normal or expected. Whether used to describe a particular activity or simply to emphasize the emotive power behind a particular action, the phrase with a vengeance remains a useful tool in many forms of writing. By exploring different ways to convey the same intense meaning, writers can create a sense of drama and intensity within their work.