Definition of "unrepeatable" []

• Unable to be repeated (adjective)
• (of an experiment or procedure) That gives different results when repeated (adjective)

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• "A live, largely uncensored affair, often improvised and by definition unrepeatable, the very opposite of recorded entertainment."
• "Harry Potter countdown: Toby Jones say 'unrepeatable' franchise will stand alone forever"
• "These blog projects that become books and movies make me somewhat sad, because in the end they are unrepeatable experiments."