"Oh, no." Undine coloured at the infelicitous allusion: besides, she knew now that the smart people who were "musical" went in stalls.
Edith Wharton. The Custom of the Country (1913)
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Dorothea’s faith supplied all that Mr. Casaubon’s words seemed to leave unsaid: what believer sees a disturbing omission or infelicity?
George Eliot. Middlemarch
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He imagined it as imposing and suffering, emphasizing to man the horror of life, the infelicity of man's destiny; preaching patience, penitence and the spirit of sacrifice;