The opposite of opening would be closing or shutting.
There is no direct opposite.
THE opposite of perform is direct
The opposite of not opening is opening. Eight-letter synonyms for opening, depending on context, include clearing, unlacing, exposing, starting
The opposite is a direct relationship.
opposite word of reporting
Direct.
An antithesis is a rhetorical device that presents contrasting ideas within a parallel grammatical structure to create a balance between two opposing concepts. It is commonly used to highlight the difference between two things and emphasize their contrast for effect.
direct
Opening
direct
The direct opposite of adjacent is nonadjacent (or non-adjoining). But for geometry or location, the usual opposite is "opposite" meaning "across from."