Made into fiction or told as a fictional story; transformed from real events into a made-up narrative.
Past participle and past tense of British 'fictionise', from 'fiction' plus '-ised' suffix. The adjective form describes something that has undergone the process of fictionization.
When something is described as 'fictionised,' it's a polite way of saying it's been changed from the truth—which is why memoirs are often labeled 'fictionised accounts' to manage expectations.
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