The word(s) "slightest" appears 2 time(s) in 2 verse(s) in Quran in Muhammad Pickthal translation.

(1) And how many a generation before them have We destroyed! Canst thou (Muhammad) see a single man of them, or hear from them the slightest sound?

(سورة مريم, Maryam, Chapter #19, Verse #98)
(Arabic, Transliteration, Urdu (Ahmed Ali), Urdu (Jalandhry), Farsi, Yusuf Ali, Shakir, Picthal, Mohsin Khan, French, Spanish, Indonesian, Malay, German, Bosnian, Russian, Dutch, Italian, Portuguese, Tafsir - Jalal ad-Din, Tafsir - King Fahad Quran Complex)

(2) They will not hear the slightest sound thereof, while they abide in that which their souls desire.

(سورة الأنبياء, Al-Anbiyaa, Chapter #21, Verse #102)
(Arabic, Transliteration, Urdu (Ahmed Ali), Urdu (Jalandhry), Farsi, Yusuf Ali, Shakir, Picthal, Mohsin Khan, French, Spanish, Indonesian, Malay, German, Bosnian, Russian, Dutch, Italian, Portuguese, Tafsir - Jalal ad-Din, Tafsir - King Fahad Quran Complex)