untraced

/ʌnˈtreɪst/
adjective
  1. Not found or followed; having no known path or origin.
    • The call came from an untraced number, so they couldn't call back.
    • The artist's early influences are untraced in any biography.
    • The missing hiker remained untraced despite a week-long search.
Antonyms
What does "untraced" mean? | whatsthatwordmean | whatsthatwordmean