The word(s) "bad" appears 15 time(s) in 13 verse(s) in Quran in Abdullah Yusuf Ali translation.

(1) Fighting is prescribed for you, and ye dislike it. But it is possible that ye dislike a thing which is good for you, and that ye love a thing which is bad for you. But Allah knoweth, and ye know not.

(2) O ye who believe! Give of the good things which ye have (honourably) earned, and of the fruits of the earth which We have produced for you, and do not even aim at getting anything which is bad, in order that out of it ye may give away something, when ye yourselves would not receive it except with closed eyes. And know that Allah is Free of all wants, and worthy of all praise.

(3) Allah had helped you at badr, when ye were a contemptible little force; then fear Allah; thus May ye show your gratitude.

(4) Say: "Not equal are things that are bad and things that are good, even though the abundance of the bad may dazzle thee; so fear Allah, O ye that understand; that (so) ye may prosper."

(5) For those who followed the Jewish Law, We forbade every (animal) with undivided hoof, and We forbade them that fat of the ox and the sheep, except what adheres to their backs or their entrails, or is mixed up with a bone: this in recompense for their wilful disobedience: for We are true (in Our ordinances).

(6) It is We Who created you and gave you shape; then We bade the angels prostrate to Adam, and they prostrate; not so Iblis; He refused to be of those who prostrate.

(7) Then began Satan to whisper suggestions to them, bringing openly before their minds all their shame that was hidden from them (before): he said: "Your Lord only forbade you this tree, lest ye should become angels or such beings as live for ever."

(8) From the land that is clean and good, by the will of its Cherisher, springs up produce, (rich) after its kind: but from the land that is bad, springs up nothing but that which is niggardly: thus do we explain the signs by various (symbols) to those who are grateful.

(9) "Those who follow the messenger, the unlettered Prophet, whom they find mentioned in their own (scriptures),- in the law and the Gospel;- for he commands them what is just and forbids them what is evil; he allows them as lawful what is good (and pure) and prohibits them from what is bad (and impure); He releases them from their heavy burdens and from the yokes that are upon them. So it is those who believe in him, honour him, help him, and follow the light which is sent down with him,- it is they who will prosper."

(10) When they disregarded the warnings that had been given them, We rescued those who forbade Evil; but We visited the wrong-doers with a grievous punishment because they were given to transgression.