Antonyms of noun classification

1 of 4 senses of classification

Sense 4
classification -- (restriction imposed by the government on documents or weapons that are available only to certain authorized people)
       Antonym of declassification (Sense 1)
      => declassification -- (reduction or removal by the government of restrictions on a classified document or weapon)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun classification

4 senses of classification

Sense 1
categorization, categorisation, classification, compartmentalization, compartmentalisation, assortment -- (the act of distributing things into classes or categories of the same type)
       => grouping -- (the activity of putting things together in groups)

Sense 2
classification, categorization, categorisation -- (a group of people or things arranged by class or category)
       => arrangement -- (an orderly grouping (of things or persons) considered as a unit; the result of arranging; "a flower arrangement")

Sense 3
classification, categorization, categorisation, sorting -- (the basic cognitive process of arranging into classes or categories)
       => basic cognitive process -- (cognitive processes involved in obtaining and storing knowledge)

Sense 4
classification -- (restriction imposed by the government on documents or weapons that are available only to certain authorized people)
       => restriction, confinement -- (the act of keeping something within specified bounds (by force if necessary); "the restriction of the infection to a focal area")