The word(s) "extreme" appears 16 time(s) in 15 verse(s) in Quran in Mohsin Khan translation.

(11) And We have put coverings over their hearts lest they should understand it (the Qur'an), and in their ears deafness. And when you make mention of your Lord Alone [La ilaha illallah (none has the right to be worshipped but Allah) Islamic Monotheism (توحيد الله)] in the Qur'an, they turn on their backs, fleeing in extreme dislike.

(12) He said: "My Lord! How can I have a son, when my wife is barren, and I have reached the extreme old age."

(13) And those who, when they spend, are neither extravagant nor niggardly, but hold a medium (way) between those (extremes).

(14) That was because you had been exulting in the earth without any right (by worshipping others instead of Allah and by committing crimes), and that you used to rejoice extremely (in your error).

(15) "Verily, We fear from our Lord a Day, hard and distressful, that will make the faces look horrible (from extreme dislike to it)."