Separated, disconnected, or no longer joined together; divided or parted.
Past participle of disjoin, used as an adjective. The -ed ending marks both the past tense and the resulting state.
When disjoin becomes disjoined, it shifts from describing an action (the process of separating) to describing a state (things that are now apart)—this shift from verb to adjective is fundamental to how English describes the world.
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