Insulating refers to the process of protecting against heat or cold. Synonyms for this word include isolating, shielding, blocking, guarding, and protecting. These words all convey a sense of providing a barrier or layer between something and the outside environment. Other synonyms for insulating include buffering, cushioning, and cocooning. These words suggest a degree of softness and comfort, as well as protection. Further synonyms for insulating include fortifying, reinforcing, and strengthening. These words suggest a sense of providing extra support or resistance to outside forces. Whatever the synonym used, the key concept of insulating remains the same: creating a protective layer to shield against external factors.