undeterred
1. [ adjective ] not deterred
Synonyms: undiscouraged
Examples:

"pursued his own path...undeterred by lack of popular appreciation and understanding"- Osbert Sitwell

Related terms: resolute
Similar spelling:   undetermined
  untethered
  undetected
  unneeded
  unheeded
  unheated
  unedited
  unnoted
  unmated
  undated
  unitedly
  undetectable
  unaided