👉 Unsilicated, also known as unactivated, is a term used in chemistry and biochemistry to describe a substance that has not been activated or converted into another form. Unsaturated substances are typically organic molecules that do not contain all their atoms bonded together; they can be either saturated or unsaturated. The term "unsilified" refers to the fact that these compounds are not chemically modified, meaning they do not have any functional groups attached to them.