The word(s) "awful" appears 96 time(s) in 71 verse(s) in Quran in Mohsin Khan translation.

(61) O Prophet (Muhammad صلى الله عليه وسلم)! Verily, We have made lawful to you your wives, to whom you have paid their Mahr (bridal-money given by the husband to his wife at the time of marriage), and those (slaves) whom your right hand possesses - whom Allah has given to you, and the daughters of your 'Amm (paternal uncles) and the daughters of your 'Ammat (paternal aunts) and the daughters of your Khal (maternal uncles) and the daughters of your Khalat (maternal aunts) who migrated (from Makkah) with you, and a believing woman if she offers herself to the Prophet, and the Prophet wishes to marry her - a privilege for you only, not for the (rest of) the believers. Indeed We know what We have enjoined upon them about their wives and those (slaves) whom their right hands possess, in order that there should be no difficulty on you. And Allah is Ever Oft-Forgiving, Most Merciful.

(62) It is not lawful for you (to marry other) women after this, nor to change them for other wives even though their beauty attracts you, except those (slaves) whom your right hand possesses. And Allah is Ever a Watcher over all things.

(63) Is he then, who will confront with his face the awful torment on the Day of Resurrection (as he who enters peacefully in Paradise)? And it will be said to the Zalimun (polytheists and wrong-doers): "Taste what you used to earn!"

(64) But if they turn away, then say (O Muhammad صلى الله عليه وسلم): "I have warned you of a Sa'iqah (a destructive awful cry, torment, hit, a thunderbolt) like the Sa'iqah which overtook 'Ad and Thamud (people)."

(65) And as for Thamud, We showed and made clear to them the Path of Truth (Islamic Monotheism) through Our Messenger, (i.e. showed them the way of success), but they preferred blindness to guidance; so the Sa'iqah (a destructive awful cry, torment, hit, a thunderbolt) of disgracing torment seized them because of what they used to earn.

(66) There they shall pass from hand to hand a (wine) cup, free from any Laghw (dirty, false, evil vain talk between them), and free from sin (because it will be lawful for them to drink).

(67) Verily, We sent against them a single Saihah (torment - awful cry), and they became like the stubble of a fold-builder.

(68) Those among you who make their wives unlawful to them by (Zihar الظهار) (i.e. by saying to them "You are like my mother's back,") they cannot be their mothers. None can be their mothers except those who gave them birth. And verily, they utter an ill word and a lie. And verily, Allah is Oft-Pardoning, Oft-Forgiving.

(69) And those who make unlawful to them their wives by Zihar and wish to free themselves from what they uttered, (the penalty) in that case is the freeing of a slave before they touch each other. That is an admonition to you (so that you may not repeat such an ill thing). And Allah is All-Aware of what you do.

(70) O you who believe! When believing women come to you as emigrants, examine them; Allah knows best as to their Faith, then if you ascertain that they are true believers send them not back to the disbelievers. They are not lawful (wives) for the disbelievers nor are the disbelievers lawful (husbands) for them. But give them (the disbelievers) that (amount of money) which they have spent [as their Mahr] to them. And there will be no sin on you to marry them if you have paid their Mahr to them. Likewise hold not the disbelieving women as wives, and ask for (the return of) that which you have spent (as Mahr ) and let them (the disbelievers) ask back for that which they have spent. That is the Judgement of Allah, He judges between you. And Allah is All-Knowing, All-Wise.