Implausibility can be described using various synonyms that help convey the same meaning. Some synonyms for implausibility are unlikelihood, improbability, incredibility, and dubiousness. These synonyms explain the difficulty in believing or accepting something as true or valid. Each of these synonyms can be used in different contexts, such as in literature or scientific discoveries, where the claims made may seem unbelievable or questionable. When using synonyms for implausibility, it helps to choose the right word that fits the context and tone of the message. By using these synonyms, writers can add depth and nuance to their writing while still maintaining the essence of implausibility.