undismayed
1. [ adjective ] unshaken in purpose
Synonyms: undaunted unshaken
Examples:

"wholly undismayed by the commercial failure of the three movies he had made"

Related terms: resolute
Similar spelling:   undischarged
  untwisted
  undisputed
  undisturbed
  undistorted
  undissolved
  undisputedly
  undisguised
  undisclosed
  unaddicted