What is often considered the dispensable sense the one we could most easily live without if necessary?

The sense often considered dispensable is the sense of smell. While it plays a significant role in flavor perception and detecting danger, such as smoke or spoiled food, many people can function without it. Loss of smell, known as anosmia, can impact quality of life, but individuals can adapt and rely more on their other senses. Thus, it is generally viewed as the least essential sense for basic survival.