The word(s) "opposer" appears 2 time(s) in 2 verse(s) in Quran in Muhammad Habib Shakir translation.

(1) And this was Ad; they denied the communications of their Lord, and disobeyed His apostles and followed the bidding of every insolent opposer (of truth).

(سورة هود, Hud, Chapter #11, Verse #59)
(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) And they asked for judgment and every insolent opposer was disappointed:

(سورة ابراهيم, Ibrahim, Chapter #14, Verse #15)
(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)