"Deviative" refers to something that deviates or diverges from the common or standard course. Some synonyms for the word "deviative" include "different", "aberrant", "anomalous", "divergent", "nonconforming", "unconventional", "unorthodox", and "offbeat". These words all mean something or someone that is not typical or follows the usual pattern. They suggest that there is something unique, unusual, or peculiar about the thing or idea being discussed. These synonyms can help to add variety or nuance to one's language and can also be useful in creating a more precise and engaging message.