Octopi and bêche-de-mer [...] are rounded up for the Japanese, perhaps the most fastidiously hygenic people on the planet, who are clearly unaware of what exactly a reef cleaner in Kiribati cleans.
J. Maarten Troost. The Sex Lives of Cannibals, p.60 (2004)
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He knew to watch the weather and to kill during an arc of light-to-heavy precipitation because that would rob the police of evidence. But he was not as fastidious as the police liked to think.
Alice Sebold. The Lovely Bones. p.50 (2002)
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Alexey Alexandrovitch was himself very fastidious,
Leo Tolstoy. Anna Karenina (Translated by Constance Garnett)
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Dougal pulled the dirk from his belt and began to clean his fingernails with the point. He was a fastidious man, in spite of the difficulties of keeping clean on the road.
Diana Gabaldon. Outlander (1991)
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He swiftly lost the fastidiousness which had characterized his old life.
Jack London. The Call of the Wild (1903)
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it was the most complete, fastidious list that has ever been created.
Gillian Flynn. Gone Girl, p.237 (2012)
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“Is Mr. Rochester an exacting, fastidious sort of man?”
Charlotte Brontë. Jane Eyre (1847)
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the room where a large and unfastidious family usually slept.