manqué

“[…] and all things considered, I don't much regret that this affair with Miss Amory is manquée, though I wished for it once—in fact, all things considered, I am very glad of it.”

1848 November – 1850 December, William Makepeace Thackeray, chapter XXXVII, in The History of Pendennis. […], volume II, London: Bradbury and Evans, […], published 1850, →OCLC, page 356

The rivals now were but rival nurses; and never did a lot of women make more fuss over a child than all these bloodthirsty men did over this Amazon manquée.

1866, Charles Reade, chapter VI, in Griffith Gaunt, or Jealousy, Boston: Ticknor and Fields, page 38, column 1

At first, I planned to take a degree in psychiatry as many manqué talents do; but I was even more manqué than that; a peculiar exhaustion, I am so oppressed, doctor, set in; and I switched to English literature, where so many frustrated poets end as pipe-smoking teachers in tweeds.

1955 September 15, Vladimir Nabokov, Lolita, Paris: The Olympia Press […], →OCLC

The four possible combinations of values can be named Truth and Falsity (with capital initials) and truth-manqué and falsity-manqué (with lower-case initials).

1975, D. Hockney, W. Harper, B. Freed, Contemporary Research in Philosophical Logic and Linguistic Semantics, Springer,, →ISBN, page 78

Perhaps there was a feeling of moral triumph over a celebrated man, who was a noble man manqué because of his character flaws, whereas Fyodorov was a nobleman manqué for purely biological and social reasons, his illegitimacy.

1992, Irene Masing-Delic, Abolishing Death: A Salvation Myth of Russian Twentieth-Century Literature, Stanford University Press, →ISBN, page 78