The term "riffled through" connotes a search through a stack of papers or a collection of items in a hurry, often resulting in disarray. Antonyms for this term could include "organized," "sorted," "catalogued," or "filed." These actions involve a deliberate and systematic approach to the arrangement of a collection of items, rather than a quick and haphazard search. Additionally, alternative words to "riffled through" could include "browsed," "skimmed," "scanned," or "glanced at." These words refer to a casual or intentional look through a collection of items, as opposed to a thorough search.