The phonetic transcription of "undetected" is /ˌʌndɪˈtektɪd/ in British English and /ˌʌndɪˈtektɪd/ in American English. Click the 🔊 button to hear both pronunciations.
Synonyms for "undetected": unseen, unsuspected, unheard, unrevealed, unnoticed.
Example usage of "undetected": "The thief walked away undetected.". More examples on the page.