The word(s) "unbelieving" appears 15 time(s) in 15 verse(s) in Quran in Muhammad Habib Shakir translation.

(11) And do Thou deliver us by Thy mercy from the unbelieving people.

(12) O my sons! Go and inquire respecting Yusuf and his brother, and despair not of Allah's mercy; surely none despairs of Allah's mercy except the unbelieving people.

(13) This is because they love this world's life more than the hereafter, and because Allah does not guide the unbelieving people.

(14) And what she worshipped besides Allah prevented her, surely she was of an unbelieving people.

(15) O you who believe! when believing women come to you flying, then examine them; Allah knows best their faith; then if you find them to be believing women, do not send them back to the unbelievers, neither are these (women) lawful for them, nor are those (men) lawful for them, and give them what they have spent; and no blame attaches to you in marrying them when you give them their dowries; and hold not to the ties of marriage of unbelieving women, and ask for what you have spent, and let them ask for what they have spent. That is Allah's judgment; He judges between you, and Allah is Knowing, Wise.