Aren't you overanalyzing this? consider:

romantic 4 a : marked by the imaginative or emotional appeal of what is heroic, adventurous, remote, mysterious, or idealized b often capitalized : of, relating to, or having the characteristics of romanticism c : of or relating to music of the 19th century characterized by an emphasis on subjective emotional qualities and freedom of form; also : of or relating to a composer of this music
Merriam-Webster Online (MWC-10)

(please note the "often capitalized")

hence, postromantic (also listed in MWC-10 under examples of post-) == after this period


and this, from the Encarta Encly., shows the transferral to literature -
Memórias póstumas de Brás Cubas (1881; Epitaph of a Small Winner, 1952), by one of Brazil’s greatest writers, Joaquim Maria Machado de Assis, initiated the postromantic phase of Brazilian literature. The novels and short stories of Machado de Assis explored the dark corners of human nature, relationships, and 19th-century Brazilian society, often focusing on madness and self-delusion.
Microsoft ® Encarta ® Encyclopedia 2005 © 1993-2004 Microsoft Corporation. All rights reserved.

or (and I hesitate to suggest this) google postromantic (or post-romantic, for orders of magnitude more ghits).

[edit for spelling]

Last edited by tsuwm; 10/21/2005 5:30 AM.