• pyrrhic

pyr·rhic. /ˈpirik/. adjective. (of a victory) won at too great a cost to have been worthwhile for the victor. late 19th century: from the name pyrrhus + -ic.

• crepuscular

cre·pus·cu·lar. /krəˈpəskyələr/. adjective. of, resembling, or relating to twilight; (of an animal) appearing or active in twilight. mid 17th century: from latin crepusculum ‘twilight’ + -ar.