The word "whiffy" is often used to describe something that emits an unpleasant odor or scent. However, there are many antonyms for the word "whiffy" that describe pleasant or neutral smells. For example, the antonyms for "whiffy" could include fragrant, sweet-smelling, aromatic, refreshing, and pleasant. Other antonyms for "whiffy" could include odorless or scentless, which would indicate that there is no smell present at all. When describing scents and smells, it is important to consider the context and the impact that the smell has on individuals. Choosing the right antonym can help to more effectively communicate the desired message.