To cloister someone is to remove and isolate them from the rest of the world.
A recluse is someone who chooses to live alone and deliberately avoids other people.
Exclusion is the act of shutting someone out of a group or an activity.
If the results of something are inconclusive, they are uncertain or provide no final answers.
Seclusion is the act of someone's being closed off from society as a whole by moving into isolation or solitude.
The conclusion of something, such as a book or thought, is its end, last part, or close.
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