Triumph(noun): 1. the act, fact, or condition of being victorious or triumphant; victory; conquest. 2. a significant success or noteworthy achievement; an instance or occasion of victory.

http://www.dictionary.com/browse/triumph

The Story of An Hour by Kate Chopin, “There was a feverish triumph in her eyes, and she carried herself unwittingly like a goddess of Victory.”  In this statement, Mrs. Mallard was happy that finally, something good will come to her yet she was not unaware of what would come next, she was unaware of that she was going to die.