The word "整整" is formed through the morphological process of full reduplication, where the base character "整" (meaning "whole" or "complete") is repeated verbatim. This repetition creates a reinforced emphasis on the concept of entirety or exactness, often intensifying the original meaning without altering its core sense. Such reduplicative structures are common in Chinese for adding expressive nuance, and in this case, the doubling serves to highlight thoroughness or precision, as seen in phrases like "整整一年" (a full year). The formation relies solely on the duplication of the character, resulting in a cohesive lexical unit that functions as an adverb or adjective in context.