undetectable

Pronunciation:  US [ˌʌndɪ'tektəbl] UK [ˌʌndɪ'tektəbl]
  • adj.Invisible; Imperceptible; Can't find the
  • WebUndetectable; Can be detected; Not detected
adj.
1.
Not easy to find
2.
Unable to discover
3.
Undetectable