manqué [mɑŋˈkeɪ] a. also manquée
1.) After its noun: that might have been but is not, that has missed being.
2.) In other uses: defective, spoilt, missing, lacking, etc. (O.E.D. 2nd Ed.).
Etymology: French, past participle. of manquer to miss, be lacking.
"Herbert Pratt was there for a month, and I saw him tolerably often; he used to talk to me about Spain, and the East, about Tripoli, Persia, Damascus; till it seemed to me that life would be manquée altogether if one shouldn't have some of that knowledge" (Notebooks, Henry James, 1947).
(Portrait of Henry James, John Singer Sargent, 1913)