... But that is a matter of very trifling moment; you would not offend me if you were to ask more than that, and you would cause me serious regret if you were to limit yourself to that... 
Alexandre Dumas, Pere 「The Man in the Iron Mask」
... “A trifling affair...
Rafael Sabatini 「Scaramouche」
...De Wardes flew upon Raoul with such impetuosity, that at the first clashing of the steel blades Buckingham clearly saw that Raoul was only trifling with his adversary...
Alexandre Dumas, Pere 「Ten Years Later」
... “So trifling an amount as that; but you possess other property...
Alexandre Dumas, Pere 「Ten Years Later」
... “Oh! surely,” said D’Artagnan, “you must have some trifling matters to arrange before you leave your apartments in this manner...
Alexandre Dumas, Pere 「Louise de la Valliere」
...—While I was in this ship anincident happened, which, though trifling, I beg leave to relate, as Icould not help taking particular notice of it, and considering it thenas a judgment of God...
Olaudah Equiano 「The Interesting Narrative of the Life of Olaudah Equiano, Or Gustavus Vassa, The African」
...These horrid effects havesucceeded what was conceived once to be trifling...
W. E. B. Du Bois 「The Suppression of the African Slave Trade to the United States of America」
...This trifling incident was the more pleasing, as it was the first attempt at neatness I had seen since leaving the establishment of Mozinkwa in Londa...
David Livingstone 「Missionary Travels and Researches in South Africa」
...As to the mortality, or the loss of them by death in the course of their passage, it was trifling...
Thomas Clarkson 「The History of the Rise, Progress and Accomplishment of the」
...Not only murder, theft, and adultery, are punished by selling the criminal for a slave, but every trifling crime is punished in the same manner...
Thomas Clarkson 「The History of the Rise, Progress and Accomplishment of the」
...The wretched Africans, daily subjected to the lash, and unmercifully whipt and beaten on every trifling occasion, have been found to resist their opposers...
Thomas Clarkson 「An Essay on the Slavery and Commerce of the Human Species, Particularly the African」
... Even that painful exposure of an optical illusion would be trifling compared with the imposture of Khartoum...
Samuel White Baker 「In the Heart of Africa」
...In all savage countries the most trifling demand requires much talking...
Samuel White Baker 「In the Heart of Africa」
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