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

(1) So We have only made it easy in your tongue that you may give good news thereby to those who guard (against evil) and warn thereby a vehemently contentious people.

(سورة مريم, Maryam, Chapter #19, Verse #97)
(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 say: Are our gods better, or is he? They do not set it forth to you save by way of disputation; nay, they are a contentious people.

(سورة الزخرف, Az-Zukhruf, Chapter #43, Verse #58)
(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)